Comparison

Alti vs Chess Clock

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

Head to head
About

Alti

This app provides your current altitude with a simple and cool interface. It allows switching between meters and feet and automatically stores your maximum altitude. It's also available for Apple Watch and as a widget.

Highlights
  • Current altitude display
  • Switch between meters and feet
  • Store maximum altitude
  • Apple Watch support
  • Widget support
Features
Read full description

The coolest and the simplest Altimeter ever! You can switch from meters and feet and store the maximum reached altitude automatically. Available also for Apple Watch, without have the app on the iPhone opened! Now available also as Widget! If you like, leave me a positive review, if not, leave me a positive review!

About

Chess Clock

This app provides a clean, ad-free timer for various chess game formats, including blitz and rapid. It offers customizable time controls, supports Fischer and Bronstein increment modes, and tracks game statistics for both players. Easily adjust time during a game and switch between portrait and landscape orientations.

Highlights
  • Ad-free interface
  • Fischer and Bronstein increment modes
  • Customizable timers
  • Adjust time during game
  • Move counter and statistics
  • Portrait and landscape support
Features
Read full description

Need a fast and reliable chess clock for your speed games? Looking for a clean, distraction-free chess timer without ads? Chess Clock is a simple tool designed to time your chess matches quickly and efficiently — whenever you need it. Perfect for blitz, bullet, rapid, classical chess, or any two-player game where precise time control matters. Why Choose This Chess Clock? ● Clean and simple interface ● No ads — no distractions ● Large, easy-to-read fonts ● Fast and reliable performance ● Designed for both casual and tournament use Key Features ● Select your game duration and increment with just a few taps ● Support for both Fischer and Bronstein increment modes ● Works in portrait and landscape orientation ● Customize your own timers ● Pause the timer at any time ● Adjust remaining time in the middle of a game ● Move counter and game statistics for both players ● Completely ad-free experience — — — How does this chess clock work? Simply select your game duration and increment type, then tap to start. Each player taps their side of the screen after making a move to switch the timer. What increment modes are supported? The app supports both Fischer and Bronstein increments. Fischer adds a fixed amount of time after every move. Bronstein adds time up to the increment amount based on how quickly you moved. Can I adjust the timer during a game? Yes. You can pause the game and adjust the remaining time for either player at any point during the match. Can I create custom time controls? Yes. You can set your own player time, choose an increment type, and specify the increment duration to match any format you need. Does the app track game statistics? Yes. The app records total game time, time played per player, number of moves, and average time per move. Does the app contain ads? No. The app is completely ad-free for a distraction-free experience. Does it work in landscape mode? Yes. The app fully supports both portrait and landscape orientations. Is the app free? The app is free to download and use, with optional premium features available via in-app purchase. — — — If you enjoy the app, please leave a review on the App Store. Your feedback really helps. Questions or suggestions? We'd love to hear from you. Support Email: AppsForParents@gmail.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/site/appsforparentsprivacy/

Screenshots

Alti4 screens
Chess Clock4 screens

Verdict

The call

The clearest difference is rating: Chess Clock at 4.5 against Alti's 3.9. Chess Clock also leads on review sentiment (69% vs 32%) and update cadence (every 5 weeks vs every 37 months). Alti's advantage is in-app purchases (none vs 7) and ratings volume (271 vs 42). On price, 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. Chess Clock sells 6 in-app purchases, starting at $4.99 per 7 days. Alti asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chess Clock holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: Alti has 271 ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 32% of Alti's written reviews are positive against 69% of Chess Clock's.

UpkeepUpdate frequency

Alti ships an update every 37 months, Chess Clock every 5 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

Scorecard7 real differences · 3 level
Alti versus Chess Clock: the parameters behind the verdict, then further details
ParameterAltiChess Clock
PriceFreeFree
Rating3.9 (271 ratings)4.5 (42 ratings) — better
Positive reviews32.4% of reviews68.8% of reviews — better
Number of ratings271 — better42
Update frequencyEvery 37 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better16.4
Further details — not scored
Size24 MB19 MB
Age rating4++4
Developeralbertopasca.itNatalia Jakubczyk-Gajewska

Customer experience

Alti

All ratings271 ratings
Positive71.2%
Neutral6.3%
Negative22.5%
Written reviews34 reviews
Positive32.4%
Neutral8.8%
Negative58.8%

Chess Clock

All ratings42 ratings
Positive88.1%
Neutral0.0%
Negative11.9%
Written reviews16 reviews
Positive68.8%
Neutral0.0%
Negative31.3%

Bugs and requests

Alti

Reported bugs

19 issues
  • Altimeter does not read location
  • App is stuck
  • Not accurate
  • Géolocalisation ne fonctionne pas
  • Doesn't seem to work on iPad 9
Show 14 more
  • Doesn’t work most of the time
  • Can’t change unit of measure
  • Altitude jumps around
  • Location is not correct
  • Not working at all
  • Can’t find location
  • Altitude varies by 90 feet
  • Doesn’t record how high you go
  • Works, occasionally
  • Complication does not update
  • Application doesn’t give more than 800 m altitude
  • Reads 0 now
  • Too hard to switch units
  • Too hard to enter new location

Requested features

3 requests
  • Display GPS accuracy
  • Add a way to view past altitudes
  • Instructions for use

Chess Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Alti

No in-app purchases

6 purchases

Chess Clock

Subscriptions5
  • 1 Week Premium Subscription7 Days trial$4.997 Days
  • Chess Clock Premium3 Days trial$5.997 Days
  • Chess Clock Premium3 Days trial$7.991 Month
Show 2 more
  • Chess Clock Premium$14.993 Months
  • Chess Clock Premium2 variants$29.991 Year
One-time1
  • Chess Clock Premium Lifetime$29.99

Questions

Is Alti free?
Alti is free to download, with no in-app purchases.
Is Chess Clock free?
Chess Clock is free to download, with in-app purchases available.
Which has better reviews, Alti or Chess Clock?
Chess Clock is rated higher. Alti averages 3.9 out of 5 from 271 ratings, while Chess Clock averages 4.5 from 42 ratings.
Do Alti or Chess Clock have ads?
Neither Alti nor Chess Clock shows ads.
Which is updated more often, Alti or Chess Clock?
Alti ships an update every 37 months, and Chess Clock every 5 weeks. Most recently, Alti was updated on September 24, 2026 and Chess Clock on September 19, 2026.

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