Free tools to help you grow your subscriber base at acquisition costs your subscription revenue can support.

See how pricing, trials and renewals affect your returns. Use those economics to set your acquisition targets and plan the creative tests that can bring your next subscribers.

Free. No signup required.

Revenue and payback

See what a cohort returns under your plans, trials, renewals and store fees.

Subscription App Revenue Calculator

Compare weekly, monthly, quarterly and annual plans with trials, renewals and store fees. See cohort cash and payback.

Plans + Payback

Plan your creative and budget

Work out how much creative you need and how your spend should ramp.

Creative Testing Calculator

Work out how many creatives to test, the budget required and a weekly production schedule.

Tests + Budget

Creative Volume Calculator

Find how many creative tests your media budget and production capacity can support.

Capacity

UA Spend Calculator

Plan how an iOS and Android acquisition budget changes week by week.

Weekly budget

Write and brief your ads

Ad Hook Scorer

Paste your hook. Get it scored on Context, Clarity and Curiosity, with what is missing and three rewrites.

AI-powered

Creative Brief Generator

Describe your app. Get a brief with hook angles across visual, on-screen text, voiceover and audio.

AI-powered

Preview your ads

Approximate mockups for the placements subscription apps commonly use. See all ad preview tools.

Meta Ad Preview

Approximate Facebook Feed, Instagram Feed, Stories and Reels mockups, with crop controls and PNG export.

Facebook + Instagram

Instagram Ad Preview

Approximate Instagram Feed, Stories and Reels mockups before you check the final ad in Ads Manager.

Feed + Stories + Reels

TikTok Ad Preview

Approximate For You feed mockups with safe-zone guides, so you can check your caption and crop.

For You feed

YouTube Ad Preview

Approximate pre-roll, in-feed and Shorts mockups for your video ads.

Pre-roll + Shorts

How these tools fit together

Subscription economics are slow to show up. Trial delays, renewal timing and store fees all change when cash comes back, so a cost per install that looks expensive in week one can pay back later, or never. Start by modelling that timing with your own numbers.

Once you know what you can afford to pay, the planning calculators turn that into a creative testing load and a weekly budget. The hook, brief and preview tools then help you make and check the ads themselves.

Frequently asked questions

Which tool should a subscription app start with?

Start with the Subscription App Revenue Calculator. It shows what a cohort returns under your plan mix, trial offers and renewal assumptions, which tells you what you can afford to pay for an install.

Do these tools use industry benchmarks?

No. The calculators use the assumptions you enter, so results reflect your own numbers. Use data from comparable cohorts where you have it.

Can I compare two scenarios?

Yes. The calculators let you save one scenario, change an input and compare the results. They also export a CSV.

Are these tools free?

Yes. They are free with no signup. The two AI-powered tools have hourly and daily limits so they can stay free.