OTROTango vs STEM Prep Tutoring
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTROTango
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OTROTango app provides members with real-time news information, package history, attendance history, timetable, and course/package prices. Members can create profile in the app.
STEM Prep Tutoring
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Join live classes, access recordings, and get one-on-one personalized sessions.
Screenshots
Verdict
The clearest difference is update cadence: OTROTango at monthly against STEM Prep Tutoring's every 10 months. On price, ads, 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.
OTROTango ships an update monthly, STEM Prep Tutoring every 10 months. The most recent releases landed on September 15, 2026 and September 25, 2026 respectively.
| Parameter | OTROTango | STEM Prep Tutoring |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 226 MB |
| Age rating | 4+ | 4+ |
| Developer | ALGO TECH LIMITED | STEM Consulting Inc |
In-app purchases
OTROTango
No in-app purchases
STEM Prep Tutoring
No in-app purchases
Questions
Is OTROTango free?
Is STEM Prep Tutoring free?
Do OTROTango or STEM Prep Tutoring have ads?
Which is updated more often, OTROTango or STEM Prep Tutoring?
Other comparisons
