eTRY vs MathZAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eTRY
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This app is a toolkit for teens who want help to address everyday issues and problems. Specific skills focus on managing decision making, dealing with stress, and avoiding triggers that lead to drug use, including opioid use. Each tool in the app provides some education as well as engaging activities that promote the building of practical and meaningful skills for you to easily learn and apply.
MathZAPP
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Unlock the power of math with MathZAPP, the ultimate math companion With lessons, in-depth answer keys, videos, printable sheets, and a chat forum that facilitates interactive learning and support, MathZAPP makes learning fun To bridge the math-help support gap for middle schoolers, I created MathZAPP to provide students with engaging and accessible resources to effectively level up math skills and to unleash their math superpowers!
Screenshots
Verdict
The clearest difference is ads: eTRY at none against MathZAPP's shown. MathZAPP's advantage is iOS requirement (11.0 vs 14.0). On price, update cadence, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
eTRY ships an update every 3 weeks, MathZAPP fortnightly. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.
| Parameter | eTRY | MathZAPP |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | ORBIS, Inc | Colette Kent |
In-app purchases
eTRY
No in-app purchases
MathZAPP
No in-app purchases
Questions
Is eTRY free?
Is MathZAPP free?
Do eTRY or MathZAPP have ads?
Which is updated more often, eTRY or MathZAPP?
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