Comparison

Corner vs Terra Grip

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

Head to head
About

Corner

Bring the boxing studio home with on-demand classes and real-time tracking. Improve your boxing technique, lose weight, and get fitter with world-class coaches. Track your progress with punch stats, calories burned, and personalized goals.

Highlights
  • On-demand boxing classes
  • Real-time leaderboards
  • Punch and calorie tracking
  • Personalized goal setting
  • Bluetooth heart rate monitor support
  • Smart boxing timers
  • Sync with Health app
Features
Read full description

Want to improve your boxing, lose weight or just get fitter? Bring the boxing studio to your living room with on-demand boxing classes where every punch counts. Stay motivated with real-time leaderboards and track punch stats, calories burned & more using Corners trackers. Start your 14 day FREE trial today! Corner Premium membership gives you unlimited access to all of our classes, with the world's best boxing coaches. CLASSES FOR EVERYONE Get started with the class that’s right for you, whether it’s your first time or you’re an experienced boxer. The classes we offer: - Box + HIIT - Just Box - Strength & Conditioning - Academy - Warm up and Cool down APP FEATURES: - Train with friends on real-time class leaderboards. - New workouts added every week. - Classes for everyone ranging from beginner to advanced. - Improve your boxing technique with the world's best coaches. - Track your Punch Count, Speed, Power, Work Rate, KO Points & more. - Connect any bluetooth heart rate monitor to see your heart rate and calories burned. - Set personalised goals to ensure you're always improving. - Cast Quick Start, Interval Training or On Demand class leaderboards and live stats from your phone to your TV. - Track your own boxing workouts anywhere with our quick start and interval timer workout modes. - Smart boxing timers with customisable round and rest times so you never miss a punch. - Sync Corner with the Health app to see your boxing workout data alongside other health metrics in the Health app. GET STARTED WITH PREMIUM Corner Premium requires an in-app subscription, available on a monthly or yearly basis. Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime from your Apple account settings. All subscriptions start with a 14 day free trial. Terms & Conditions: https://trainwithcorner.com/terms

About

Terra Grip

Features
Read full description

Terra Grip is the reference app for Terra's APIs. Real-time wearable data and your Apple Health history, from your device to Terra in seconds. Pair the app with your Terra dashboard by scanning a QR code. Connect a Bluetooth heart-rate sensor, your Apple Watch, or your phone's own motion sensors, and watch your live readings flow on the phone and on your dashboard. • One-scan pairing: a QR code from your Terra dashboard connects the app for hours. No accounts, no API keys on the device. • Stream heart rate, HRV, R-R intervals, acceleration and more from BLE sensors • Apple Watch: pick your workout, then stream heart rate, energy, distance, speed, steps and heart rate variability alongside the watch's motion sensors • No wearable handy? Stream your phone's built-in motion sensors • Live view of every reading as it streams, charted in real time • Keeps streaming while your phone is locked or in your pocket • Apple Health: read your workouts, day totals, sleep, body measurements, nutrition and cycle tracking over any range up to 31 days, see them in the app, and send them to your dashboard Apple Health integration: with your permission, Terra Grip reads your workouts, steps, active energy, exercise time, distance, flights climbed, heart rate, resting heart rate, heart rate variability, VO2 max, sleep, weight, height, BMI, body fat, food energy, water, protein, carbohydrates, fat, sugar and cycle tracking from Apple Health, shows each of them in the app, and sends them to the Terra dashboard you paired with. New readings are also read and sent in the background, so this keeps working when the app is closed. It never writes to Apple Health. Your health data is used only to provide this service and is never used for advertising or marketing. You choose which categories to share when you connect, and can change or revoke access at any time in the Health app under Sharing. Curious how it feels? Tap "Try the demo" on first launch — the full experience on synthetic data, no account needed. Built for developers evaluating Terra's APIs. Terra Grip uses the Streaming API for live sensor data and the Health & Fitness API to read Apple Health. Both need a Terra developer account (tryterra.co) to generate the pairing code the app scans. Terra Grip is a reference app for development and testing. It shows data as reported by the connected device or by Apple Health, without interpretation or derived measurements. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a doctor or other qualified healthcare provider before making any medical decisions, and never rely on this app as a substitute for professional medical advice.

Screenshots

Corner4 screens
Terra Grip3 screens

Verdict

The call

The clearest difference is in-app purchases: Terra Grip at none against Corner's 3. On price, update cadence, ads 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. Corner sells 3 in-app purchases, starting at $14.99 per month. Terra Grip asks for nothing beyond the download.

UpkeepUpdate frequency

Corner ships an update every 10 days, Terra Grip every 5 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 9 level
Corner versus Terra Grip: the parameters behind the verdict, then further details
ParameterCornerTerra Grip
PriceFreeFree
Rating4.5 (290 ratings) — better—
Positive reviews68.0% of reviews—
Number of ratings290 — better—
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod, Apple Watch
Requires iOS15.0 — better15.1
Further details — not scored
Size118 MB28 MB
Age rating4+4+
DeveloperCorner Wearables LtdTerra Enabling Developers

Bugs and requests

Corner

Reported bugs

16 issues
  • App crashes on launch and during use
  • Registration/account creation stuck on finish screen
  • Video playback showing only still frame with spinner
  • Tracker connectivity drops during workouts
  • Punch count inaccuracies and missed punches
Show 11 more
  • Tracker battery not reaching 100% charge
  • Tracker disconnection alerts interrupting workouts
  • App crashes when making sessions private
  • Back button inaccessible on iPhone mini due to scaling
  • Workouts cut short due to improper coding
  • App mutes Spotify when audio cues enabled
  • Apple Health sync not functioning
  • Leaderboard display issues showing only world top 10
  • Phantom rounds appearing and unable to delete
  • App cuts music when opened during workout
  • Inconsistent punch type recognition

Requested features

16 requests
  • Pause and rewind functionality during live classes
  • Beginner-friendly onboarding with clear starting point
  • Granular punch-by-punch performance tracking (speed/power per punch type)
  • End-of-round warning/countdown timer
  • Apple TV AirPlay support with data display
Show 11 more
  • Apple Health integration that actually works
  • Calorie burn estimation
  • Audible feedback/sound cues for punch detection
  • Customizable number of rounds
  • Multiple leaderboard options (by speed, power, effort)
  • Ability to set personal best charts visible during sessions
  • Better punch type differentiation (especially for hooks)
  • Workout export/sharing capabilities (email, WhatsApp)
  • Heart rate monitoring integration
  • Combo tracking and metrics
  • Special characters support in password creation

Terra Grip

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Corner

Subscriptions3
  • Monthly Membership14 Days trial$14.991 Month
  • Quarterly Membership7 Days trial$35.993 Months
  • Annual Membership14 Days trial$107.991 Year
None

Terra Grip

No in-app purchases

Questions

Is Corner free?
Corner is free to download, with in-app purchases available.
Is Terra Grip free?
Terra Grip is free to download, with no in-app purchases.
Do Corner or Terra Grip have ads?
Neither Corner nor Terra Grip shows ads.
Which is updated more often, Corner or Terra Grip?
Corner ships an update every 10 days, and Terra Grip every 5 days. Most recently, Corner was updated on October 14, 2026 and Terra Grip on October 6, 2026.

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