AppMarketSpy › Utilities › my57
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App info
- Developer
- Miroslav Perovic
- Category
- Utilities, Education
- Released
- Sep 9, 2026
- Version
- 1.0.1 (Oct 20, 2026)
- Price
- Free
- Size
- 3.5 MB
- Requires
- iOS 26.5
- Age rating
- 4+
- Languages
- English
In-app purchases
| Full Version | $4.99 |
Current prices, App Store US.
🔒 Price history4 snapshots: when prices changed and new plans appearedGet Pro access
About my57
Relive the classic 1977 Programmable 57 pocket calculator — faithfully recreated for iPhone, iPad, and Mac. my57 is a cycle-accurate emulator running the same ROM microcode as the original hardware. Every function, every keystroke, and every quirk — including its number formatting and error-blinking display — is reproduced exactly, not reimplemented. AUTHENTIC HARDWARE • 12-digit red LED display with a diffuser-glass texture and optional LED Glow • Real Speed mode runs at the original ~5,000 cycles/second, or switch to Turbo for instant results • Two documented factory ROM revisions (rev0/rev1) to choose from • Algebraic Operating System (AOS) entry, exactly like the original FULL PROGRAMMING SUPPORT • 50 program steps with LRN (Learn) mode • 8 addressable memory registers • GTO, subroutines (SBR), conditional branches (x=t, x≥t), and Dsz counting loops • Scientific notation,…
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