Comparison

Amir Keren`s Studio vs ISRTRI

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

Head to head

About

Amir Keren`s Studio

Features

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Welcome to the Amir Keren's Studio members app! Download our app to plan and book your fitness classes. At the click of a button, you can view class schedules, sign up for classes and even invite a friend to join you! With the app, you'll keep in touch with Amir Keren's Studio staff and coaches, receive notifications, news and reminders.

About

ISRTRI

Features

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This app is used for: registration for triathlon events in Israel upload necessary documents for participating in events see your events history

Screenshots

Amir Keren`s Studio4 screens

ISRTRI4 screens

Verdict

The call

The clearest difference is update cadence: ISRTRI at weekly against Amir Keren`s Studio's every 7 months. Amir Keren`s Studio's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price, ads and in-app purchases 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.

UpkeepUpdate frequency

Amir Keren`s Studio ships an update every 7 months, ISRTRI weekly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 3 level

Amir Keren`s Studio versus ISRTRI: the parameters behind the verdict, then further details
Parameter	Amir Keren`s Studio	ISRTRI
Price	Free	Free
Update frequency	Every 7 months	Weekly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone
Requires iOS	15.1 — better	18.6
Further details — not scored
Size	57 MB	17 MB
Age rating	4+	4+
Developer	Arbox LTD	ran kellner

In-app purchases

None

Amir Keren`s Studio

No in-app purchases

None

ISRTRI

No in-app purchases

Questions

Is Amir Keren`s Studio free?

Amir Keren`s Studio is free to download, with no in-app purchases.

Is ISRTRI free?

ISRTRI is free to download, with no in-app purchases.

Do Amir Keren`s Studio or ISRTRI have ads?

Neither Amir Keren`s Studio nor ISRTRI shows ads.

Which is updated more often, Amir Keren`s Studio or ISRTRI?

Amir Keren`s Studio ships an update every 7 months, and ISRTRI weekly. Most recently, Amir Keren`s Studio was updated on November 3, 2026 and ISRTRI on October 29, 2026.