Comparison

DEFINE vs StretchPrep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DEFINE

Features
Read full description

YOUR FACE. YOUR MEALS. YOUR RHYTHM. DEFINE brings face captures, a food diary and hydration tracking together in one clear interface. OBSERVE YOUR CHANGES Take a first scan, revisit your captures and compare them under similar conditions. Visual analysis runs on your device. Your face photos are not uploaded to an analysis service. LOG YOUR MEALS Search for foods or scan a barcode, adjust your serving and review calories and macronutrients. You can also enter foods manually. Nutrition values are estimates based on the foods and portions you record. KEEP TRACK OF YOUR WATER Log the water you drink and review your daily diary. Meals, water and captures add context to your routine without claiming to medically explain changes in your face. AVAILABLE IN ENGLISH AND FRENCH Choose your language from the welcome screen. Photos and diary entries are stored locally; no built-in cloud backup is provided. IMPORTANT DEFINE is a wellbeing tracking tool, not a medical device, diagnosis or beauty rating. Lighting, angle and expression affect visual indices. Results and improvements are not guaranteed. DEFINE+ One first scan is free. Some features require a DEFINE+ subscription. The price, duration and eligibility for any trial are displayed before you confirm with Apple. An eligible trial becomes paid when it ends unless cancelled. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your Apple account settings. Purchases are managed through Apple and RevenueCat. With your Apple tracking permission, the TikTok SDK may measure advertising campaigns and usage and subscription events. Face photos and diary contents are not sent to TikTok. Privacy: https://shundays06.github.io/define-privacy-url/ Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

StretchPrep

Features
Read full description

Your body, your routine. StretchPrep is a stretching routine builder: compose exactly the session you need — zones, holds, order — and follow it with the guided player. BUILD YOUR ROUTINE • Pick from 151 illustrated stretches, organized by body zone: neck, shoulders, back, lower back, hips, glutes, hamstrings, quads, calves and more • Set each block your way: timed hold (30 s, 45 s…) or breath cycles • Left/right sides, custom block names, from warm-up to wind-down • Save routines as templates, organize with folders and tags, mark favorites FOLLOW THE GUIDED PLAYER • Big posture illustration, countdown, next stretch always announced • Left/right reminders and a soft gong at the end of each block — no need to watch the screen • You stretch, it guides • Voice announcements: a voice says the next stretch, and can count down 3, 2, 1 • Apple Health (optional): each session is saved as a workout in the Health app START IN SECONDS • 15 ready-made routines: morning wake-up, desk break, runner's recovery, hips & lower back… • Or start from your zones, goal and time, then make it yours SHARE YOUR ROUTINES • Send any routine with a short link: to a friend, a running partner, a client. • The person who opens it adds it to their app in one tap — or sees it on a web page. • Manage your links in Settings: copy them again or delete them at any time. Only the routines you share leave your device. MADE FOR PRACTITIONERS AND PROS Physios, coaches and teachers prepare sequences for their clients with StretchPrep — and export any routine as a clean PDF. PRIVATE BY DESIGN No account, no tracking. Your routines stay on your device. STRETCHPREP PRO The free version lets you build and play your first routines. Pro unlocks unlimited routines, the full stretch library, audio preview and the gong — monthly or yearly subscription. Terms of Use: https://stretchprep.rocketcode.app/terms/ Privacy Policy: https://stretchprep.rocketcode.app/privacy/

Screenshots

DEFINE4 screens
StretchPrep4 screens

Verdict

The call

The clearest difference is update cadence: StretchPrep at every 4 days against DEFINE's every 9 days. DEFINE's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DEFINE sells 2 in-app purchases, starting at $4.99 per month and StretchPrep sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DEFINE ships an update every 9 days, StretchPrep every 4 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 3 level
DEFINE versus StretchPrep: the parameters behind the verdict, then further details
ParameterDEFINEStretchPrep
PriceFreeFree
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better18.0
Further details — not scored
Size73 MB33 MB
Age rating12+4+
DeveloperIllan MASTEYAntoine Conan

In-app purchases

2 purchases

DEFINE

Subscriptions2
  • DEFINE+ Monthly7 Days trial$4.991 Month
  • DEFINE+ Yearly7 Days trial$39.991 Year
2 purchases

StretchPrep

Subscriptions2
  • Pro Monthly7 Days trial$3.991 Month
  • Pro Yearly7 Days trial$29.991 Year

Questions

Is DEFINE free?
DEFINE is free to download, with in-app purchases available.
Is StretchPrep free?
StretchPrep is free to download, with in-app purchases available.
Do DEFINE or StretchPrep have ads?
Neither DEFINE nor StretchPrep shows ads.
Which is updated more often, DEFINE or StretchPrep?
DEFINE ships an update every 9 days, and StretchPrep every 4 days. Most recently, DEFINE was updated on October 24, 2026 and StretchPrep on October 28, 2026.

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