Comparison

Jiu vs MatTimer

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

Head to head
About

Jiu

This app helps you manage the timing of your Brazilian Jiu-Jitsu training sessions. Set custom intervals and track your total workout time for effective rest and practice.

Highlights
  • Customizable workout timers
  • Interval setting
  • Total time tracking
  • Portuguese and English language support
  • Designed for martial artists
Features
Read full description

Control the time of your Brazilian Jiu-Jitsu workouts with this exclusive timer! You can set up several times with intervals and know how much total time you need to complete that rest of the workout. JiuJitsuTimer was thought by those who train, for whom they train! Let's Roll! * The app is available in Portuguese and English. We will soon be planning more features! If you have any suggestions, you can send them to contato@isul.com.br

About

MatTimer

This app provides a customizable timer designed for combat sports like Jiu-Jitsu and MMA. It helps athletes track training and rest periods, allowing them to focus on improving their skills. It's a simple yet essential tool for practitioners of all levels.

Highlights
  • Jiu-Jitsu and MMA timer
  • Track roll time
  • Track rest time
  • Customizable settings
  • Clear display
Features
Read full description

A round timer for the mat. Set your work time, your rest time and how many rounds — then put the phone down and train. MatTimer counts the round in numbers big enough to read from across the room, and colours the whole screen so you know where you are at a glance: green for work, red for rest. A ten-second lead-in gives you time to touch hands before the first round starts. WHAT IT DOES • Work, rest and round count, all adjustable • A bell at every round change, so you never have to look • An optional ten-second warning before each round ends — set it for work, rest, or both • Save the sessions you use often and switch between them in a tap • The screen stays awake while the timer runs ON YOUR WRIST A full Apple Watch app, not a remote control. Start, pause and stop from the watch, with the same round readout and the same colours. Set your rounds there too. ON YOUR HOME SCREEN A widget shows the round you are in and the time left, without opening the app. IT KEEPS YOUR PLACE Leave the app mid-round and it picks up exactly where it should — right round, right phase, right second. While you are away, notifications tell you when each round turns over. BUILT FOR TRAINING, NOT FOR SCROLLING No account. No subscription. No ads. Nothing to read. Open it, start it, roll.

Screenshots

Jiu4 screens
MatTimer4 screens

Verdict

The call

The clearest difference is ratings volume: Jiu at 96 against MatTimer's 1. Jiu also leads on iOS requirement (9.0 vs 26.0). On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Jiu against 5.0 for MatTimer. That said, the two scores are not equally well evidenced: Jiu has 96 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Jiu ships an update every 5 days, MatTimer weekly. The most recent releases landed on October 2, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
Jiu versus MatTimer: the parameters behind the verdict, then further details
ParameterJiuMatTimer
PriceFreeFree
Rating4.9 (96 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings96 — better1
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS9.0 — better26.0
Further details — not scored
Size43 MB6 MB
Age rating4+4+
DeveloperISul TecnologiaRavil Khusainov

Customer experience

Jiu

All ratings96 ratings
Positive99.0%
Neutral1.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

MatTimer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Jiu

No in-app purchases

None

MatTimer

No in-app purchases

Questions

Is Jiu free?
Jiu is free to download, with no in-app purchases.
Is MatTimer free?
MatTimer is free to download, with no in-app purchases.
Which has better reviews, Jiu or MatTimer?
MatTimer is rated higher. Jiu averages 4.9 out of 5 from 96 ratings, while MatTimer averages 5.0 from 1 ratings.
Do Jiu or MatTimer have ads?
Neither Jiu nor MatTimer shows ads.
Which is updated more often, Jiu or MatTimer?
Jiu ships an update every 5 days, and MatTimer weekly. Most recently, Jiu was updated on October 2, 2026 and MatTimer on September 21, 2026.

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