Comparison

Justfit vs Ankle Flex

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

Head to head
About

Justfit

This app provides customizable interval timers for various activities like HIIT, Tabata, meditation, and studying. Track your progress with detailed history and analytics, and personalize your experience with custom sounds and colors.

Highlights
  • Fully customizable interval timers
  • Full-screen circular countdown/countup stopwatch
  • Pre-made templates for HIIT, Tabata, Meditation
  • Customizable audio for intervals, sets, and rest
  • Detailed progress tracking and analytics
  • Timer sharing via export/import
  • Multilanguage support
Features
Read full description

Justfit is the interval timer that stays out of your way. Build a circuit, Tabata, HIIT or boxing timer in seconds and let it run in the background with big, readable digits. WHAT YOU GET • Unlimited intervals, sets and rest — name and color each one • Voice announcements and 3-2-1 countdown, so you never look at the screen • Sounds that cut through your music, then get out of the way • Apple Watch app and complication, Live Activity on the Lock Screen • History, streaks and weekly insights • Widgets and Siri: "Start Tabata in Justfit" FREE VS PRO Free: 3 timers, all basic sounds, 7-day history. Pro unlocks unlimited timers, templates, premium sounds and full insights — monthly, yearly or one-time. PRIVACY No account, no tracking. Your timers stay on your device and, if you choose, in your iCloud. Terms of Use (EULA): https://www.nahitfidanci.com/justfit/terms Privacy Policy: https://www.nahitfidanci.com/justfit/privacy

About

Ankle Flex

Features
Read full description

A timer app associated with the Ankle Flex physical therapy device. Includes the default timers for the Ankle Flex protocol, the ability to create new custom timers, and automatic activity logging.

Screenshots

Justfit4 screens
Ankle Flex4 screens

Verdict

The call

The clearest difference is in-app purchases: Ankle Flex at none against Justfit's 4. Justfit's advantage is update cadence (every 3 days vs every 5 months). On price, ads, device support and iOS requirement 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. Justfit sells 4 in-app purchases, starting at $1.99 per month. Ankle Flex asks for nothing beyond the download.

UpkeepUpdate frequency

Justfit ships an update every 3 days, Ankle Flex every 5 months. The most recent releases landed on October 3, 2026 and September 26, 2026 respectively.

Scorecard2 real differences · 8 level
Justfit versus Ankle Flex: the parameters behind the verdict, then further details
ParameterJustfitAnkle Flex
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size104 MB10 MB
Age rating4+4+
DeveloperFerda Nahit FidanciPerry Hooker

In-app purchases

4 purchases

Justfit

Subscriptions2
  • Monthly$1.991 Month
  • Annual$7.991 Year
One-time2
  • Lifetime Access$3.99
  • Lifetime Access$7.99
None

Ankle Flex

No in-app purchases

Questions

Is Justfit free?
Justfit is free to download, with in-app purchases available.
Is Ankle Flex free?
Ankle Flex is free to download, with no in-app purchases.
Do Justfit or Ankle Flex have ads?
Neither Justfit nor Ankle Flex shows ads.
Which is updated more often, Justfit or Ankle Flex?
Justfit ships an update every 3 days, and Ankle Flex every 5 months. Most recently, Justfit was updated on October 3, 2026 and Ankle Flex on September 26, 2026.

Other comparisons