Predictor vs RuleWatcher
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Predictor
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Predictor is an innovative social networking service where you can share your predictions in short posts and be ranked according to your success rate. Want to prove your skills and achieve higher rankings through your predictions? Join now and show the world your skills to see the future!
RuleWatcher
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Easy to grab primary information on rule-making for sustainability. RuleWatcher, a platform that automatically collects primary information issued daily by institutions engaged in global rule-making (governments, the UN, NGOs, etc.), unifies the data into a single language, and provides it to users, now offers a Community feature where people interested in the same issues can gather. Equipped with essential features for study sessions, such as shared threads, file sharing, and scheduling tools, it serves as the ideal platform for individuals tackling the same issues to learn together. Registration as a RuleWatcher user on the web version (free) is required to access the service
Screenshots
Verdict
The clearest difference is update cadence: Predictor at every 5 days against RuleWatcher's monthly. Predictor also leads on iOS requirement (13.4 vs 15.0). On price, ads, 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.
Predictor ships an update every 5 days, RuleWatcher monthly. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.
| Parameter | Predictor | RuleWatcher |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days β better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 13.4 β better | 15.0 |
| Further details β not scored | ||
| Size | 35 MB | 86 MB |
| Age rating | 17+ | 4+ |
| Developer | Tomoya Machiguchi | OSINTech |
In-app purchases
Predictor
No in-app purchases
RuleWatcher
No in-app purchases
Questions
Is Predictor free?
Is RuleWatcher free?
Do Predictor or RuleWatcher have ads?
Which is updated more often, Predictor or RuleWatcher?
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