Comparison

ISRTRI vs Nadin Zeri

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

Head to head

About

ISRTRI

Features

Read full description

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

About

Nadin Zeri

Read full description

Welcome to the Nadin Zeri 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 Nadin Zeri staff and coaches, receive notifications, news and reminders. After setting up your personal profile in the app, you'll be able to easily renew your membership, purchase Nadin Zeri merchandise and connect with other Nadin Zeri members. Download the App today! This app is powered by Arbox, the leading fitness management platform for fitness and wellness businesses. Visit arboxapp.com for more information.

Screenshots

ISRTRI4 screens

Nadin Zeri4 screens

Verdict

The call

The clearest difference is update cadence: ISRTRI at weekly against Nadin Zeri's every 20 months. Nadin Zeri's advantage is iOS requirement (15.1 vs 18.6). On price 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

ISRTRI ships an update weekly, Nadin Zeri every 20 months. The most recent releases landed on October 2, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 4 level

ISRTRI versus Nadin Zeri: the parameters behind the verdict, then further details
Parameter	ISRTRI	Nadin Zeri
Price	Free	Free
Update frequency	Weekly — better	Every 20 months
Ads	No	—
In-app purchases	No	No
Devices	iPhone — better	—
Requires iOS	18.6	15.1 — better
Further details — not scored
Size	17 MB	48 MB
Age rating	4+	4+
Developer	ran kellner	Arbox LTD

In-app purchases

None

ISRTRI

No in-app purchases

None

Nadin Zeri

No in-app purchases

Questions

Is ISRTRI free?

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

Is Nadin Zeri free?

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

Which is updated more often, ISRTRI or Nadin Zeri?

ISRTRI ships an update weekly, and Nadin Zeri every 20 months. Most recently, ISRTRI was updated on October 2, 2026 and Nadin Zeri on October 27, 2026.