Algo vs Semaphore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algo
Engage with programming concepts through interactive puzzles. Control an arrow with commands based on real coding logic to solve increasingly complex challenges. Suitable for both beginners and experienced coders.
- Solve programming puzzles
- Control arrow with commands
- Learn coding logic
- Progressive difficulty
- Hints and tips provided
- Suitable for all skill levels
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Algorithmo is a captivating journey into the world of programming and algorithms. In this game, you’ll find yourself in a universe where complex puzzles are waiting to be solved. Your task is to control a little arrow by giving it commands. These commands are based on real programming concepts, making Algorithmo not just a game, but a fun and interactive way to learn and improve your coding skills. Each level presents a new challenge, a new puzzle that needs to be solved using a specific set of commands. As you progress, the puzzles become more complex, requiring more advanced commands and a deeper understanding of programming logic. But don’t worry, Algorithmo is designed for both beginners and experienced programmers. The game provides hints and tips along the way, helping you to understand the logic behind each solution. So, are you ready to dive into the world of Algorithmo? Your adventure awaits! A paid subscription is required to access and play Algorithmo. Subscription options and pricing are displayed in the app before purchase. Privacy Policy: https://algorithmo.tilda.ws/privacy_policy Terms of Service: https://algorithmo.tilda.ws/terms
Semaphore
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Speak clearly. Sound natural. Feel confident. You’ve built your vocabulary and mastered the grammar, but do you still pause before speaking out loud? Semaphore bridges the gap between knowing a language and actually speaking it with ease. Designed specifically for intermediate learners (with tailored support for Russian speakers tackling tricky English and French phonetics), Semaphore helps you polish your accent using real-life phrases and instant, word-by-word feedback. Currently available for English and French. Why practice with Semaphore? Real-Life Daily Phrases — Practice conversations you'll actually use. Listen to native audio at normal or slowed speeds, record yourself, and get instant, color-coded feedback on every word. Target Your Weak Spots — Zoom in on words that give you trouble. Listen to reference audio, inspect transcriptions, and drill tricky words individually until they feel natural. Train Your Ear — Learn to spot subtle differences between similar-sounding words (like ship vs. sheep) through guided listening and speaking drills. Sound Guide & Personal Dictionary — Get clear explanations for difficult phonetic sounds. Save target words to your personal dictionary and track your progress over time. Smart Personal Practice — Sémaphore Plus generates custom practice sets built around the exact words you struggle with most, so you never waste time on what you’ve already mastered. Start for Free Explore the app with zero commitment: Day 1: Full access to all 8 daily phrases and 20 pronunciation assessments. Everyday Free Access: 6 assessments per day, practice with 3 daily phrases, and full audio access to the rest. Always Free: The first course lesson, personal dictionary, and complete sound guide. Sémaphore Plus Supercharge your speaking practice: Full daily phrase sets and personalized smart practice. Unlocked access to all course lessons. Up to 40 speech assessments every day. Try Plus free for 7 days (eligible new subscribers). Choose between monthly or annual options. Exact pricing in your local currency is displayed prior to purchase confirmation. Additional Information Payment will be charged to your Apple Account. Subscriptions automatically renew after any applicable trial period unless canceled at least 24 hours before the current period ends. You can manage or cancel your subscription anytime in your Apple Account settings. Microphone access and an active internet connection are required for speech analysis. Audio recordings are securely processed by an external speech engine to generate feedback. Privacy Policy: https://speechscan.vercel.app/privacy Terms of Service: https://speechscan.vercel.app/terms Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Semaphore at every 5 days against Algo's every 15 months. Algo's advantage is iOS requirement (16.0 vs 18.0). 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. Algo sells 3 in-app purchases, starting at $4.99 per month and Semaphore sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Algo ships an update every 15 months, Semaphore every 5 days. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | Algo | Semaphore |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 15 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 138 MB | 17 MB |
| Age rating | 4+ | 12+ |
| Developer | Aleksei Liutykh | Andrei Vasilev |
In-app purchases
Algo
- Patron Membership$4.991 Month
- Patron Membership$7.992 Months
- Patron Membership$8.996 Months
Semaphore
- Sémaphore Plus7 Days trial$9.991 Month
- Sémaphore Plus7 Days trial$69.991 Year









