OPN vs Minfair
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OPN
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IME application to input barcode data read using Optoelectronics' Bluetooth data collector with keyboard.
Minfair
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Minfair: Minimal Effort. Maximum Fairness for All. The All-in-One Tool for Online Selection, Draws & Voting No sign-up, free to use. Share the URL for fair drawings, voting, and scheduling. Transparent results you can trust. The fairness-first tool for everyone. ------------------------------- ◆Draw Room / Raffles • Random Picker • Team Generator Three modes: Grouping, Winners, and Ordering. Set a future draw time and share the URL for a fair, fully automated draw. Everyone sees the results at the exact same moment. ◆Raffle Room / Roles • Items • Number Raffle Create custom raffles effortlessly. Share the URL for users to join and pick roles or prizes. Supports multiple reveal methods: simultaneous, sequence, and instant. ◆Voting Room / Secret Ballots • Majority Rule • Instant Group Voting Flexible rules for candidates, deadlines, and vote counts. Hide individual votes while revealing only the totals—perfect for contests and auditions. ◆Free Response Room / Surveys • Feedback • Open-Ended Questions Create custom questions and share the URL to collect responses. Perfect for gathering ideas, feedback, and opinions that go beyond predefined choices. ◆Draft Room / Fair Allocation • Preference Matching • Draft Pick Automatically calculates the optimal allocation based on everyone's ranked preferences. Ideal for assigning roles or distributing prizes fairly. ◆Planning Room / Event Scheduling • Find a Time • Availability Check Collects availability for each date. Hide running totals to ensure honest answers. The clear overview makes scheduling smooth, even for large groups. ------------------------------- [Why Minfair?] True fairness for organizers and participants. Minfair is built on "Fairness x Technology" to ensure everyone walks away satisfied. "Was that drawing actually random?" "Was there any bias?" "Is that vote count accurate?" Trust is hard to earn. Even if organizers promise fairness, participants need proof. That's why Minfair acts as the neutral third party. Share the URL beforehand so everyone starts on the same page. Results are published simultaneously for everyone to see. From family gatherings to classrooms and workplaces. Making every decision fair. Fair for everyone. Trusted by everyone. Let Minfair handle the decision. 【Results Secured Until Reveal】 Set precise reveal times for drawings, votes, and schedules. Organizers can't peek at results early, ensuring total fairness. 【Optimized for Every Purpose】 Tailored interfaces for every need: Team generation, secret ballots, availability heatmaps, and more. 【Simple to Use, Easy to Share】 Create a room instantly without signing up. Just share the URL. Powerful tools, zero friction. ------------------------------- Minfair https://en.randroom.online/ Terms of Service https://en.randroom.online/terms
Screenshots
Verdict
The clearest difference is in-app purchases: OPN at none against Minfair's 4. OPN also leads on iOS requirement (12.0 vs 15.6). Minfair's advantage is update cadence (every 2 months vs every 14 months). On price, ads 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. Minfair sells 4 in-app purchases, starting at $29.00 per month. OPN asks for nothing beyond the download.
OPN ships an update every 14 months, Minfair every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | OPN | Minfair |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | OPTOELECTRONICS Co.,Ltd. | MoaiStudio |
In-app purchases
OPN
No in-app purchases
Minfair
- ビジネス会員(月額)日本語サイト$29.001 Month
- Business (Monthly) Global Site$29.001 Month
- ビジネス会員(年額)日本語サイト$299.001 Year
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- Business (Annual) Global Site$299.001 Year









