Comparison

Interval vs Stretch 20

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

Head to head
About

Interval

Features
Read full description

Interval is a fast, focused timer for HIIT, Tabata, EMOM, circuits, boxing rounds and any work/rest training you do. Set your work, rest and rounds — or start from a ready-made preset — and press start. A big, glanceable timer with color-coded phases and audio, voice and haptic cues keeps you on pace without staring at the screen. ON YOUR WRIST • A full Apple Watch app — start and run any of your workouts from your wrist • Live sync — start on iPhone and it opens on your Watch instantly, and the other way around • Pause, skip or end on either device and the other follows along • Haptic cues on every phase change, so you can train without looking BUILT FOR TRAINING • Work, rest and rounds you control, with round rests between sets • Tabata, HIIT and EMOM presets to start from • A clean preview of the whole workout before you begin • Gym circuits, boxing rounds, sprint intervals, stretching, physio sets — anything that runs on a clock STAY LOCKED IN • A large timer with color-coded WORK / REST phases • Two-tier progress: where you are in the round and in the whole workout • Audio beeps and an optional voice cue on every phase change and the last 3 seconds • Haptic feedback so you can train heads-down • Keeps running with the screen locked and in the background LOCK SCREEN & DYNAMIC ISLAND • A Live Activity shows the current phase and countdown on the Lock Screen and in the Dynamic Island YOURS, AND PRIVATE • No account, no sign-up • No tracking, no ads, no data collection — everything stays on your device SIMPLE PRICING Use Interval free for up to 15 workouts with every feature unlocked. A single one-time purchase — Interval Pro — removes the limit forever and unlocks accent themes. No subscription, ever. Questions or feedback? Email interval@klimakov.me

About

Stretch 20

Features
Read full description

Stretch Ā· 20 is a focus timer that looks after your body while you work. Focus for twenty minutes, then take a one-minute guided stretch — right at your desk, no gym, no mat. Tiny breaks, big difference. HOW IT WORKS • Pick your rhythm: 20:20 for micro-breaks, 50:10 for longer recovery, or 90:20 for deep work. • Focus. A calm ring counts down your sprint, with a gentle word of encouragement along the way. • Stretch. When the break arrives, Dot walks you through one move: three simple steps and a line on why it helps. • Back to work, better than you left it. MOVES FOR THE WHOLE DESK DAY 33 free moves for eyes, neck and shoulders, wrists, torso, legs and circulation, breathing and hydration. A trainer-style rotation picks the right move for each break, and you choose which ones are in play. SEE THE HABIT GROW • Today at a glance: focus time, sessions, and a daily goal you set. • Streaks and weekly stats, with a best-day and a week-over-week trend. • A quiet daily recap when your active hours end. MADE TO FIT YOUR DAY • Live Activity: your timer on the Lock Screen and Dynamic Island. • Active hours, so it rests when you do. • Alerts your way: a chime, a screen flash, a torch pulse, or all three. • A calm dark mode when the light goes. PRIVATE BY DESIGN No account. No analytics. No tracking. Everything Stretch Ā· 20 knows stays on your phone — the app never connects to anything except the App Store when you make a purchase. Delete the app and your data goes with it. PREMIUM, IF YOU WANT MORE Everything above is free, and stays free. Premium adds: • Four recovery packs — posture reset, desk athlete, calm & breathe, wrist & hand pro — 32 more moves. • Custom timing: any work length, any break length. • In-work nudges for water, posture and eyes, on your cadence. • Full history beyond the last 7 days. Monthly, yearly, or once for life. Nothing you already have is ever taken away. Made by Convora Labs LLP. Questions or ideas? We read every message: icubetechservices@gmail.com SUBSCRIPTION DETAILS Premium is available as an auto-renewable monthly subscription (US$1.99 per month) or auto-renewable yearly subscription (US$14.99 per year), or as a one-time lifetime purchase (US$24.99). Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless it is canceled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the current period. Manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://icubetechservices.com/privacy

Screenshots

Interval4 screens
Stretch 204 screens

Verdict

The call

The clearest difference is iOS requirement: Stretch 20 at 15.0 against Interval's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Interval sells 1 one-off in-app purchase and Stretch 20 sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Ā· 5 level
Interval versus Stretch 20: the parameters behind the verdict, then further details
ParameterIntervalStretch 20
PriceFreeFree
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size38 MB23 MB
Age rating4+4+
DeveloperOLEG KLIMAKOVConvora Labs LLP

In-app purchases

1 purchases

Interval

One-time1
  • Interval Pro$6.99
3 purchases

Stretch 20

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Yearly$14.991 Year
One-time1
  • Premium Lifetime$24.99

Questions

Is Interval free?
Interval is free to download, with in-app purchases available.
Is Stretch 20 free?
Stretch 20 is free to download, with in-app purchases available.
Do Interval or Stretch 20 have ads?
Neither Interval nor Stretch 20 shows ads.

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