π Pi Challenge vs Lano
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
π Pi Challenge
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An app for memorizing the digits of Pi. It supports up to 30 million digits… totally unnecessary, but fun. Comes with a ranking feature! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Lano
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Learn a language by chatting, not cramming. Lano lets you pick up a new language just by texting an AI friend every day — like a chat with a buddy, not a lesson. Type casually, and before your message is sent, Lano quietly polishes it into natural phrasing, so the right way to say things becomes your own. ■ What you can do with Lano ・Chat freely with AI friends in the language you're learning — they keep the conversation going ・Automatic pre-send correction turns "understandable but off" into natural phrasing you'll actually use ・One-tap translation into your own language ・"Learned" saves the phrases you pick up, so you can review anytime ・The AI matches its vocabulary and difficulty to your level ・Create your own AI friends — design their personality, style, and icon, and even role-play in character ■ Many languages in one app Learn English, Korean, Chinese, Spanish, and more. Each AI friend can teach a different language, so you can study several at once. Go unlimited with Lano Premium: unlimited chat and unlimited AI friends. Start free. Terms of Use: https://lano.appmatch.jp/terms/ Privacy Policy: https://neonsoak.com/privacy-policy/
Screenshots
Verdict
The clearest difference is ads: Lano at none against π Pi Challenge's shown. Lano also leads on update cadence (every 2 weeks vs every 2 months). π Pi Challenge's advantage is iOS requirement (13.0 vs 15.0). On price, 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. π Pi Challenge sells 1 in-app purchase, starting at $0.99 per month and Lano sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
π Pi Challenge ships an update every 2 months, Lano every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | π Pi Challenge | Lano |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 73 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | SIC Company Limited | NEONSOAK |
In-app purchases
π Pi Challenge
- Monthly Subscription$0.991 Month
Lano
- Lano Premium$5.991 Month
- Lano Premium7 Days trial$49.991 Year
