Best for Australian DTC brands that want senior-led creative and media buying judged against profit: Ecom Republic. Best for statistical testing at very high creative volume: NewForm. Best for creator-led tests: inBeat Agency. This 2026 guide compares ten named agencies for scaling ad creative testing across Meta and TikTok, with the limits of each option made clear.
- Best agency for scaling ad creative testing across Meta and TikTok depends on spend, format mix and who owns media decisions.
- Ecom Republic suits DTC brands with proven demand that want creative, paid ads and profit measurement under one senior team.
- NewForm fits very high-volume statistical testing; inBeat Agency fits creator-led testing; TubeScience fits enterprise video production.
- Compare who makes creative, who manages spend and how each team judges profitable new customers.
Disclosure: This is Ecom Republic's guide, and we appear in it. Our Meta Ads management service explains how creative and media buying work together for ecommerce.
Why this matters
A creative producer can deliver files without managing a single ad. A media buyer can spend your budget while waiting for fresh creative. The useful partner turns a customer insight into a distinct ad, tests it at a spend level that can support a decision, and takes the result back to the next brief. Meta and TikTok need separate edits and measurement, not a blind cross-post of the same file.
What makes a strong Meta and TikTok creative-testing agency
- Meaningful variation: new customer problems and messages, not just crops or opening captions.
- A documented test: a hypothesis, controlled comparison, a decision point and a next brief.
- Both platforms: demonstrated Meta and TikTok work, with native formats for each.
- Commercial measurement: new-customer cost, store sales and margin alongside platform claims.
- Production matched to spend: more variants only when the account can give them a fair read.
- Relevant experience: work with brands facing a similar customer, product and budget challenge.
Ten agencies at a glance
| Agency | Best for | Main trade-off |
|---|---|---|
| Ecom Republic | Australian DTC brands wanting paid ads and diverse creative tied to profit | Not a one-off production shop |
| NewForm | Very high-volume structured testing | Needs enough spend to test its volume |
| inBeat Agency | Creator-led Meta and TikTok ad tests | Creator-heavy approach may not cover every format |
| TubeScience | Enterprise performance video | Video-first and enterprise-oriented |
| Defiant Digital | Australian TikTok sprints feeding Meta | Ask what is included at your actual spend |
| Darkroom | Creator content plus broader commerce work | Wider service scope can exceed a creative-only need |
| Common Thread Collective | Creative tied to financial forecasting | Agree how each concept will get enough exposure |
| MuteSix | Structured tests with a full-service studio | Larger integrated remit than a narrow test |
| Pilothouse Digital | Meta angle and format testing alongside buying | Public framework is Meta-led |
| Right Hook Digital | DTC launch calendars and cross-channel creative | Drop-led case may not fit always-on catalogues |
1. Ecom Republic: best for profit-led DTC testing with one senior team
Best for: Brands with proven demand that need paid ads, distinct creative and growth strategy working from the same commercial numbers, especially in Australia. We plan ads across customer awareness stages, vary hooks, angles and UGC, static and motion formats, then use buying results and the client's P&L to choose the next work. Creative volume is sized to spend, average order value and available evidence rather than promised as a fixed quota.
How we work: The senior team owns strategy, production and media buying. Creative volume follows the account's goals, spend, order value and what the results can tell us, not a fixed quota.
Engagement: The 30-Day Love It Or Leave It Promise covers a paid first month: clients can leave after 30 days without ongoing fees or a long-term commitment and keep the work already made, handed over cleanly. Ongoing engagements run month to month.
Limitation: Not suited to pre-demand products or someone buying a single isolated design asset. Verdict: Strong fit when the commercial result matters more than buying a large asset quota.
2. NewForm: best for high-volume statistical creative tests
Best for: DTC teams already running enough Meta and TikTok spend to evaluate many variants. NewForm's own guide describes Framework, a system for structured experiments and decisions to scale or stop ads, paired with creative production. Its guide names 18 Birdies and Dub as client examples and reports a 74% lower acquisition cost for 18 Birdies, without making that a general benchmark.
Limitation: A brand unable to fund fair exposure for many variants should not buy volume for its own sake. Verdict: Strong fit for high-spend testing operations, conditional for smaller accounts.
3. inBeat Agency: best for creator-led Meta and TikTok tests
Best for: Teams whose bottleneck is creator footage, hooks and native short video. inBeat's ad-testing page describes testing concepts, hooks, formats and copy, launching inside the client's actual account, documenting winners and briefing the next cycle. It describes 30–80 new ad units per month for its managed programme, not a universal requirement. Its site names Greenpark Sports and Got Milk? among case studies; those names alone do not verify a Meta-plus-TikTok outcome.
Limitation: Ask how static and product-led concepts are covered alongside creator material. Verdict: Strong fit when creator supply and controlled testing are the constraint.
4. TubeScience: best for enterprise video variation
Best for: Brands with the budget and sales volume to evaluate a deep video pipeline. In its Kitsch case study, TubeScience says it launched more than 100 variations per month across funnel stages; it reports Meta spend rising 126% while efficiency improved 49%, using Northbeam measurement. That is a single client case, not proof of the same result on TikTok or a standard output guarantee.
Limitation: If your main need is low-volume static or founder-led creative, enterprise video machinery is more than you need. Verdict: Strong fit at enterprise video scale.
5. Defiant Digital: best for Australian TikTok-first creative sprints
Best for: Brands wanting TikTok testing to inform work on Meta. Defiant's TikTok service page describes short creative cycles across hooks, tones and edits, using in-house production and creators before adapting winning patterns across channels. It names DoorDash and Love to Dream among case studies; its DoorDash page headline reports 32% more new customers and a 29% lower acquisition cost, without establishing that TikTok creative alone caused either result.
Limitation: Its suggested 30–60 new ads monthly is its own operating view, not a universal minimum. Verdict: Strong fit for a TikTok-first Australian brief, conditional when margin measurement is the principal gap.
6. Darkroom: best for creator content within a wider commerce remit
Best for: A brand wanting paid social, creative and other commerce work with one partner. Darkroom's performance-UGC method describes a creator network, briefing library, batch production and a feedback loop from paid performance into the next briefs. It discusses Meta and TikTok separately, including platform-native edits. Ask how its creator-led process will cover your mix of static, product and video ads.
Limitation: A buyer who already has strong media, retention and site teams may need only a focused creative partner. Verdict: Conditional fit when the wider service scope is genuinely useful.
7. Common Thread Collective: best for forecasting plus creative supply
Best for: DTC operators who want media and creative decisions tied to business economics. Its creative-production page describes UGC packages of 20, 40 and 80 ads, along with product and margin selection, creator briefs, launch and review. Its PRO Compression example says creator content accounted for more than 40% of ad spend, but does not give a comparable TikTok-versus-Meta lift. Its Meta method favours letting new ads compete in the main account rather than a separate creative test budget.
Limitation: Agree in advance how a new concept gets enough exposure to reach a decision if it receives little spend. Verdict: Strong fit when financial planning and creative deployment must move together.
8. MuteSix: best for structured tests across an integrated remit
Best for: Established brands that want creative production and media managed with other channels. In its A/B-testing account, MuteSix describes testing product claims, copy, UGC versus branded content and formats for Twillory. It reports doubled annual revenue and a 58% larger customer base in that case, but the page does not isolate what share was caused by creative or TikTok. Its service navigation includes both Meta and TikTok.
Limitation: The Twillory result covers a combined engagement, so ask what the creative tests would cover for your brand. Verdict: Conditional fit for a brand seeking broad delivery with structured tests.
9. Pilothouse Digital: best for Meta angle-by-format testing
Best for: Brands that want a visible, repeatable creative brief tied to media buying. Pilothouse's 3-3-3 method maps three funnel levels, three angles and three formats into test combinations. It cites GrowOya and Circulon as clients, including a reported 332% net-sales rise for Circulon's Black Friday–Cyber Monday period. That sales result is not evidence that every combination was tested or that TikTok was the driver.
Limitation: Its framework is Meta-focused; ask for a separate TikTok-native test plan. Verdict: Conditional fit for dual-platform buying, strong for Meta-first experimentation.
10. Right Hook Digital: best for product-drop creative calendars
Best for: DTC brands with launches where creative must follow a planned sales cycle. Its Jack of the Dust case describes teaser, VIP access and launch phases, with behind-the-scenes clips, statics and founder footage planned weeks in advance across paid, organic and TikTok. The result signal is more consistent sales and operational stability, not a published controlled lift from creative testing alone.
Limitation: A drop calendar is not the same as an always-on Meta-versus-TikTok testing design. Verdict: Conditional fit for launch-led brands.
Which agency should you choose?
For a DTC brand with proven demand wanting accountable paid ads and diverse creative under the same senior team, Ecom Republic is our stated fit, subject to a review of margin and spend. Choose NewForm when the scale and statistical test operation are the core need, inBeat Agency for creator-led production with an in-account test loop, or TubeScience for enterprise video volume. Keep the commercial constraint ahead of the raw ad count.
FAQ
What's the best agency for scaling ad creative testing across Meta and TikTok?
For a profit-led Australian DTC brand with proven demand, Ecom Republic is our disclosed pick for senior-led creative and media buying. NewForm suits very high-volume structured testing; inBeat Agency suits creator-led programmes.
How many new ads should we test monthly at our spend level?
There is no honest universal count by spend band. Estimate the cost of giving each genuinely distinct concept enough exposure and sales to judge it, then divide the available testing budget by that cost; ask the agency to show the calculation for your account.
Does 100 ads a month mean 100 independent tests?
No. A new crop, hook or edit may be a useful variant without being a new concept. Ecom Republic treats high monthly output as capacity, not a standard promise or a count of independent winners.
Should one agency handle creative and media buying?
One team can shorten the brief-to-result loop, but separate specialists can work if they share the same account data, decision owner and review cadence. Ask who changes spend, who briefs the next variant and who reconciles reported sales with store sales.
How long until a new ad produces its first winner?
No fixed week count is credible without the budget, conversion volume, production lead time and purchase lag. Agree the earliest decision date and minimum evidence before launch; a promising click rate alone is not a sale.
Is a Meta winner automatically a TikTok winner?
No. Carry the underlying customer insight across, then re-edit the opening, pacing, format and call to action for TikTok and test it there. Compare sales and new-customer cost separately by channel.
How much does a Meta and TikTok creative-testing agency cost?
Most agencies here require a current quote for a comparable brief; public ad counts are not fee schedules. Ask for separate production, creator, usage-rights and management costs, plus the media budget excluded from the fee.
One last thing
A faster production line is not a faster learning line if the budget cannot give each new concept a fair read. In 2026, the best next hire is the team that can explain what the next ad tests and what result would make them change course.
