Comparison

Predictor vs RuleWatcher

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Predictor

Features
Read full description

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!

About

RuleWatcher

Features
Read full description

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

Predictor1 screens
RuleWatcher3 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Predictor ships an update every 5 days, RuleWatcher monthly. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

Scorecard2 real differences Β· 4 level
Predictor versus RuleWatcher: the parameters behind the verdict, then further details
ParameterPredictorRuleWatcher
PriceFreeFree
Update frequencyEvery 5 days β€” betterMonthly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS13.4 β€” better15.0
Further details β€” not scored
Size35 MB86 MB
Age rating17+4+
DeveloperTomoya MachiguchiOSINTech

In-app purchases

None

Predictor

No in-app purchases

None

RuleWatcher

No in-app purchases

Questions

Is Predictor free?
Predictor is free to download, with no in-app purchases.
Is RuleWatcher free?
RuleWatcher is free to download, with no in-app purchases.
Do Predictor or RuleWatcher have ads?
Neither Predictor nor RuleWatcher shows ads.
Which is updated more often, Predictor or RuleWatcher?
Predictor ships an update every 5 days, and RuleWatcher monthly. Most recently, Predictor was updated on September 10, 2026 and RuleWatcher on September 18, 2026.

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