4 = 1 vs TAC Academy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4 = 1
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Solve fun math puzzles! Each puzzle is unique and has at least one possible solution. Use operators to form creative and complex equations. Created by Cory Tripathy and Zoe Cutler
TAC Academy
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AC Academy is your gateway to world-class learning and personal growth. Whether you’re a student, professional, or lifelong learner, our app provides curated courses, expert-led sessions, and an engaging platform to help you achieve your goals.
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Verdict
The clearest difference is update cadence: 4 = 1 at monthly against TAC Academy's every 16 months. TAC Academy's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
4 = 1 ships an update monthly, TAC Academy every 16 months. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.
| Parameter | 4 = 1 | TAC Academy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Zoe Cutler | Testpress Tech Labs LLP |
In-app purchases
4 = 1
No in-app purchases
TAC Academy
No in-app purchases
