Comparison

PhaseKit vs StretchPrep

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

Head to head
About

PhaseKit

Features
Read full description

Stop fumbling with a stopwatch mid-set. PhaseKit builds interval routines that hold their shape through an actual workout, breathwork session, mobility flow, or study block — then brings back the one you need in seconds. Create custom sequences, group steps into repeatable rounds, save routines you'll reuse, and jump straight into any saved timer without rebuilding it from scratch. Key features: • Ready-to-run templates: Tabata, 30/30 intervals, box breathing, and focus sessions • Build custom interval sequences with grouped steps • Save and reuse routines for workouts, breathwork, mobility, or study blocks • Start from any timer in a routine, not just the first • Spoken 3-2-1 countdown and a gong between steps • Timers from one second up to 24 hours • iCloud sync for saved routines across your devices • Available in English, Spanish, German, French, Italian, Hindi, and Thai • No account required • No third-party ads or analytics Core timer building, playback, grouping, and saved routines are completely free. An optional one-time Support Developer purchase unlocks cosmetic app color customization and helps fund ongoing development — it's not a subscription, and it never limits the free features. Customers who bought the paid version of PhaseKit before it became free keep the supporter unlock automatically. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://domtelier.com/apps/phasekit/privacy Support: https://domtelier.com/apps/phasekit/support

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

PhaseKit4 screens
StretchPrep4 screens

Verdict

The call

The clearest difference is update cadence: StretchPrep at every 5 days against PhaseKit's every 2 months. On price, ads, in-app purchases and device support 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. PhaseKit sells 1 one-off in-app purchase 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

PhaseKit ships an update every 2 months, StretchPrep every 5 days. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 5 level
PhaseKit versus StretchPrep: the parameters behind the verdict, then further details
ParameterPhaseKitStretchPrep
PriceFreeFree
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS18.618.0 — better
Further details — not scored
Size4 MB61 MB
Age rating4+4+
DeveloperDominik SchmittAntoine Conan

In-app purchases

1 purchases

PhaseKit

One-time1
  • Unlock Custom Colors$0.99
2 purchases

StretchPrep

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

Questions

Is PhaseKit free?
PhaseKit is free to download, with in-app purchases available.
Is StretchPrep free?
StretchPrep is free to download, with in-app purchases available.
Do PhaseKit or StretchPrep have ads?
Neither PhaseKit nor StretchPrep shows ads.
Which is updated more often, PhaseKit or StretchPrep?
PhaseKit ships an update every 2 months, and StretchPrep every 5 days. Most recently, PhaseKit was updated on October 31, 2026 and StretchPrep on November 10, 2026.

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