On vs Prikan
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
On
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How many hours do you spend on the duty roster every month? Touchoku takes over the whole job β collecting requests, generating a fair schedule, and handling swaps after it's finalized. Built by a practicing physician, born from real hospital pain. WHO IT'S FOR - You're the one stuck making the on-call / duty roster for your department or ward - Requests arrive scattered across chat, paper, and hallway conversations - You want to end the "why do I always get weekends?" and "their pay is higher" complaints - Every swap after finalizing means rebuilding the table by hand KEY FEATURES Collect requests Create a room and share the PIN β that's it. Members enter preferred days, must-avoid days, and other work from their own phones. For people without an account, add them as proxy participants and enter on their behalf. Automatic scheduling Weekly and monthly limits, minimum spacing between duties, and no-pair rules ("these two can't share a slot") are all respected. Optional weekday day shifts, with automatic holiday detection for Japan, the US, China, and Spain. Fairness you can defend Not just balanced counts β the pay gap (max minus min) is optimized too. Set amounts per day type, in yen, dollars, euros, or yuan. Safe swaps after finalizing Simulate a swap first and see exactly how counts and pay change before applying it. Full history is kept. Share, export, remind Full-screen monthly summary, one-tap PDF export, and day-before / same-day duty notifications. THREE STEPS 1. Create a room and share the PIN 2. Everyone enters their requests 3. Generate, review, finalize BEYOND HOSPITALS Clinics, nursing homes, pharmacies, labs, shops β anywhere a team takes turns, Touchoku works. Available in English, Japanese, Chinese, and Spanish. Core features are free. A web version lets you check the roster from any browser with the same account.
Prikan
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Prikan is a family-friendly print manager for kindergarten, daycare, and school. Just snap a photo of handouts and notices β no typing, no tracing β and AI automatically reads the dates, amounts, and keywords, then syncs everything to your calendar. Use the app in your selected language - Choose the display language in Settings - Localize the app interface to the selected language - Select an input language separately Just take a photo and leave the rest to Prikan - Capture handouts cleanly with camera and macro mode - Scan multi-page documents in one go - Automatic OCR turns images into text - Dates, amounts, and keywords are detected automatically Never miss a deadline - Track due dates, event dates, and handout dates together - See everything at a glance on the calendar - Upcoming deadlines appear on the home screen - Reminder notifications help prevent forgotten items Built for the whole family - Assign handouts to each child - Manage siblings' schedules in one place - Find any handout fast with tags and search More handy features - Quick voice input for memos - Capture and save even when offline - Backup and restore keeps your data safe Premium - Ad-free experience - Monthly or yearly plans Privacy policy: https://bynet.co.jp/privacy
Screenshots
Verdict
The clearest difference is ads: On at none against Prikan's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 23, 2026 and July 9, 2026 respectively.
| Parameter | On | Prikan |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 17.6 | 17.6 |
| Further details β not scored | ||
| Size | 25 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | RYOTA UEMATSU | BYNET CO., LTD. |
In-app purchases
On
No in-app purchases
Prikan
No in-app purchases





