Comparison

KEEP PLANK vs HIIT Timer

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

Head to head
About

KEEP PLANK

Features
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\A simple app that lets you record your planks every day/ Start easily by tapping a button! ◇ What you can do with this app ・Measure the time you spend planking with one tap ・Make notes and manage your measurements ・See at a glance the days you planked on the calendar ・Don't forget to plank with the reminder function Keep doing planks and aim for a six-pack!

About

HIIT Timer

Features
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Cloud Backup & Heart Rate Log Take your HIIT and Tabata workouts to the next level with this powerful and easy-to-use interval timer. Whether you’re training at home or in the gym, this app supports your fitness goals with custom settings, workout tracking, Apple Watch integration, and more. Key Features ◆ Fully Customizable Timer Set your workout time, rest time, and number of sets exactly as you like. Perfect for HIIT, Tabata, circuit training, and strength workouts. ◆ Built-in Presets for Quick Start Start instantly with ready-made presets like the classic Tabata protocol (20s work / 10s rest x 8). Great for beginners or quick sessions. ◆ Save and Reuse Your Routines Create your own training patterns and save them for future use. Easily manage different routines for different training days. ◆ Workout History & Calendar View All completed workouts are automatically saved and can be reviewed on a monthly calendar. See your progress at a glance and stay motivated. ◆ Apple Watch Heart Rate Logging Track your peak heart rate during training when using Apple Watch. Helpful for monitoring intensity and optimizing performance. ◆ Cloud Sync with Account Login Create a free account to store your workout history and settings in the cloud. Easily restore your data when switching devices or reinstalling the app. Recommended For ・Anyone doing HIIT or Tabata workouts ・People looking to build a home training habit ・Busy professionals wanting efficient workouts ・Apple Watch users wanting heart rate tracking ・Fitness lovers who want to track their progress ・Users who want to save and manage multiple training plans Simple and Clean Interface ・Designed for focus. The workout screen displays a large, easy-to-read timer with clear audio and vibration cues for transitions. Stay in the zone without distractions. Upcoming Features (Planned) ・Shareable workout routines ・Custom sound alerts ・Advanced stats like average heart rate and estimated calories burned HIIT Timer is designed to help you stay consistent, improve performance, and enjoy every training session. Start building your fitness habit today—with a timer that supports every rep, every rest, every day. * You can use the timer for free up to 10 times. To use it 11 or more times, you will need to purchase a premium plan. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://doc-hosting.flycricket.io/hiit-timer-privacy-policy/c65f445d-1c6e-4a02-a94a-b06ebd4c05ba/privacy

Screenshots

KEEP PLANK4 screens
HIIT Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: KEEP PLANK at none against HIIT Timer's 3. KEEP PLANK also leads on update cadence (daily vs every 3 months) and iOS requirement (16.0 vs 18.2). HIIT Timer's advantage is ads (none vs shown). On price 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. HIIT Timer sells 3 in-app purchases, starting at $0.49 per month. KEEP PLANK asks for nothing beyond the download.

UpkeepUpdate frequency

KEEP PLANK ships an update daily, HIIT Timer every 3 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 2 level
KEEP PLANK versus HIIT Timer: the parameters behind the verdict, then further details
ParameterKEEP PLANKHIIT Timer
PriceFreeFree
Update frequencyDaily — betterEvery 3 months
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhoneiPhone
Requires iOS16.0 — better18.2
Further details — not scored
Size20 MB21 MB
Age rating4+4+
Developertatsuyuki shibuyaKAZUNORI WAKAMATSU

In-app purchases

None

KEEP PLANK

No in-app purchases

3 purchases

HIIT Timer

Subscriptions2
  • Premium plan (1 month)$0.491 Month
  • Premium plan (annual)$5.991 Year
One-time1
  • PremiumPlan(one-time purchase)$14.99

Questions

Is KEEP PLANK free?
KEEP PLANK is free to download, with no in-app purchases.
Is HIIT Timer free?
HIIT Timer is free to download, with in-app purchases available.
Do KEEP PLANK or HIIT Timer have ads?
KEEP PLANK shows ads; HIIT Timer does not.
Which is updated more often, KEEP PLANK or HIIT Timer?
KEEP PLANK ships an update daily, and HIIT Timer every 3 months. Most recently, KEEP PLANK was updated on October 6, 2026 and HIIT Timer on October 14, 2026.

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