# Binar.io: Assembly Puzzles — Program a tiny 8-bit machine > Program a tiny 8-bit machine (iPhone/iPad app by Gustavo cesar Sola Barreto Marcelino.) - Source: https://appshunter.io/ios/app/binario-assembly-puzzles/id6760628761 (this page in markdown: same URL + `.md`) - Developer: [Gustavo cesar Sola Barreto Marcelino](https://appshunter.io/developer/1875104005) - Category: Games, Puzzle, Strategy - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 21 MB - Languages: American English - Released: 2026-08-07 - Data updated: 2026-10-21 ## What is Binar.io? Binar.io is an assembly language puzzle game. You are given a machine, a specification, and a blank page. The BN-8 is an 8-bit processor with two registers, a loop counter, two flags, and twenty-seven instructions. It has no multiplier, no divider, and no compare instruction. Everything it can do, you build out of what it has. HOW IT WORKS Each level states a function, not a number. "Return the input with its two nibbles exchanged." "Return 1 when an odd number of the input's bits are set." A byte arrives in register A; whatever is in A when your listing ends is your answer. Your program is checked against cases you can see and cases you cannot. So there is nothing to write down and nothing to look up. The program has to be right for inputs you were never shown. THREE KINDS OF PUZZLE BUILD gives you a blank page and a contract. REPAIR gives you a listing that is already wrong, and a fault report. The first level in the game is one of these, and the program it hands you passes its first test case on purpose. IDENTIFY gives you nothing but the cases. Working out what the part is supposed to do is the puzzle. THREE SCORES, NOT ONE Every solution is measured on instructions, cycles, and silicon cost. On the levels that matter these do not agree: the smallest program and the cheapest program are different programs, and you cannot have both. A working program is always worth a star. Optimising is the reason to come back to a level, never the price of leaving it. WHAT IS IN IT 48 specifications across four worlds, from a single shift to bit reversal, packed field extraction, the doubling ladder, and a fourth world of memory, stacks and subroutines. A warm-up mode with 72 generated levels, each with a proven shortest solution. A one-page instruction reference you can open at any time. Dry and technical on purpose. No story, no energy timers, no ads, no subscription. World 1 is free, with all twelve specifications. The existing Full Campaign Unlock is an optional one-time purchase for the rest of the campaign. The App Store shows the price. For anyone who likes TIS-100, Shenzhen I/O, or finding out that the thing they built by hand was a single opcode all along. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Full Campaign Unlock | $4.99 | one-time | ## Is Binar.io safe? Not enough ratings yet to assess Binar.io. ## Is Binar.io legit? Binar.io: Assembly Puzzles appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Binar.io is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.0.9 — 2026-10-20 This update enables the existing Full Campaign Unlock, an optional one-time purchase for the campaign beyond the free first world. The App Store shows the price. No subscription. Restore purchases remains available. ### 1.0.8 — 2026-10-19 Binar.io is now completely free. New World 4, THE MEMORY: 12 puzzles with memory cells, a stack and subroutines. 48 puzzles in all. Every level now has a line limit, so brute force no longer passes. Every limit leaves room for all three stars. A clearer first run that teaches the machine from zero, and a calmer workbench that is easier to read. ### 1.0.7 — 2026-10-06 Every function you build now has a mark of its own. The logo is register A, eight rows of lamps; a level's mark is those rows passed through its function, so DOUBLE is the logo shifted one lamp left, INVERT is its negative, REVERSE its mirror. Solve a level and its mark lights up in the list, and the campaign becomes a collection of the functions you have built. VERIFY is a show now. The BN-8 runs your listing case by case where you can watch it: each case's chip lights, the register lamps flip to its bits, and every case plays a tone pitched by the byte it returned, so a working listing has its own little tune. Then the hidden cases tick past, and a pass runs the level's mark. Tap VERIFY again to skip straight to the verdict. Also in this update: • RUN and STEP play a tone for every instruction, pitched by register A, so you can hear a loop go round • Lit lamps glow, and the icon glows with them • World progress is shown in the machine's own lamps, one per specification • The tick or cross waits for the run instead of giving the answer away ### 1.0.5 — 2026-09-07 The BN-8 assembler is now the game itself. World 1 teaches four ideas across three levels each, Worlds 2 and 3 are resequenced, and the interface fixes you asked for are in. ### 1.0.4 — 2026-08-30 New release with improved puzzle flow, performance, and compatibility. ## Apps similar to Binar.io | App | Rating | Price | Category | | --- | --- | --- | --- | | [On/Off - Addicting Puzzle Game](https://appshunter.io/ios/app/onoff-addicting-puzzle-game/id905723117) | 5.0 (1) | Free | Games | | [Enigmatic: Guess The Number](https://appshunter.io/ios/app/enigmatic-guess-the-number/id1618960318) | 5.0 (1) | Free | Games | | [Ice Bot: Sliding Block Puzzle](https://appshunter.io/ios/app/ice-bot-sliding-block-puzzle/id6745772606) | 4.7 (21) | Free | Games | | [Go - Play with Friends](https://appshunter.io/ios/app/go-play-with-friends/id1472121646) | 4.6 (19) | Free | Games | | [Spirit Island](https://appshunter.io/ios/app/spirit-island/id1501321205) | 4.2 (203) | Free | Games | | [Kingdom Rush 6: Genesis TD](https://appshunter.io/ios/app/kingdom-rush-6-genesis-td/id6759664029) | 4.8 (2,172) | $6.99 | Games | ## More apps by Gustavo cesar Sola Barreto Marcelino - [DE.med: FSP & Kenntnisprüfung](https://appshunter.io/ios/app/demed-fsp-and-kenntnisprufung/id6758807897) - [Aleph: Hebrew & Greek Bible](https://appshunter.io/ios/app/aleph-hebrew-and-greek-bible/id6758858816) - [Advanced Dual N-Back](https://appshunter.io/ios/app/advanced-dual-n-back/id6758858941) - [AU.med: AMC Exam & Clinical](https://appshunter.io/ios/app/aumed-amc-exam-and-clinical/id6760537209) - [FR.med: EVC & PAE Prep](https://appshunter.io/ios/app/frmed-evc-and-pae-prep/id6760537230) - [IT.med: Esame di Stato Prep](https://appshunter.io/ios/app/itmed-esame-di-stato-prep/id6760537314) All apps by Gustavo cesar Sola Barreto Marcelino: https://appshunter.io/developer/1875104005 ## Related topics [binario](https://appshunter.io/ios/topics/binario) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-21.*