Comparison

OGS Notify vs ChessRiddle

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

OGS Notify

Receive instant notifications for your Go games on online-go.com. This app helps you avoid timing out by alerting you to new moves, paused games, and the stone removal phase. It provides a quick overview of your current games and displays updated rankings.

Highlights
  • Push notifications for game moves
  • Today widget for game overview
  • Alerts for paused games and stone removal
  • Displays updated ranking system
  • Opens games in preferred browser
Features
Read full description

OGS Notify notifies you, when one of your Go games at the famous online-go.com server is waiting for you. Never time out on any of your go games! You can instantly get an overview over your current games. • Push notification gives you a glance of the board. Immediately see the played move! • Use the Today widget to get a quick overview of waiting games. • OGS Notify shows you when a game is paused manually, by vacation or weekend. You will also see when the game is in the stone removal phase. • Displays the ranking based on the new rating system • Open the games in your preferred browser ## If you use Facebook to authenticate at OGS: Please log into OGS and create a separate password at OGS under "Settings -> Account Settings". For the login in OGS Notify use your profile name and then created password!

About

ChessRiddle

Features
Read full description

ChessRiddle is not your average tactics trainer. Instead of guessing single moves, you train real calculation – as close to a real game as possible. WHAT MAKES CHESSRIDDLE DIFFERENT • The board stays static: you calculate the whole line in your head instead of trying moves on the board. • You enter the complete variation tree to prove you calculated the entire line – no move-guessing. • Mixed Mode: tactics and positional play combined, just like a real game – you first decide whether the position is tactical or positional. • Every solution is validated server-side with Stockfish. That sets ChessRiddle apart from the hundreds of pure tactics trainers where a well-guessed first move is enough. SIX TRAINING MODES • Tactics – Find classic combinations and tactical motifs • Mixed – Tactics and positional play in one mode: assess first, then solve – just like at the board • Pieceless – Solve puzzles without visible pieces and train your board vision • Visualization – Calculate announced moves (pre-moves), then solve the position • Opening Blunder – Spot and punish typical opening mistakes • Position Evaluation – Estimate who stands better TRAINING PLANS Structured training sessions of warm-up, main part and cool-down – automatically assembled by duration and focus. COLLECTIONS Build puzzle collections and edit them in bulk – for your own training or for students. TRAIN TOGETHER In a shared session a trainer and a student work through the same positions. DUELS Challenge a friend to the same puzzles at your own pace. The more accurate player wins, not the faster one. Full history and a faster way to create a duel. NOTIFICATIONS Get notified about duels, friend requests and shared sessions. COORDINATES TRAINING Sharpen your board vision: find and name squares – timed or as a streak. PERSONAL RATING Track your progress with an individual rating system. Every mode has its own rating, so you can target your weaknesses. DETAILED STATISTICS Analyze your performance with in-depth statistics and follow your development over time. LEADERBOARD Measure yourself against other players and climb the rankings. STREAK MODE Solve as many puzzles in a row as you can without a mistake and keep your streak alive. FRIENDS Connect with friends and compare your stats. ENGINE ANALYSIS Analyze positions with the built-in Stockfish engine. HISTORY Revisit solved and missed puzzles to learn from your mistakes. With Practice Mistakes you replay exactly the positions you got wrong. ChessRiddle is the ideal app for chess players who take their training seriously and want to improve in a game-like way – from beginner to advanced. Train like you play. Prove your calculation.

Screenshots

OGS Notify4 screens
ChessRiddle4 screens

Verdict

The call

The clearest difference is price: ChessRiddle at Free against OGS Notify's $0.99. ChessRiddle also leads on in-app purchases (none vs 2) and update cadence (every 6 weeks vs every 7 months). OGS Notify's advantage is iOS requirement (12.0 vs 15.0). On 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

CostPrice · In-app purchases · Ads · Monetization

ChessRiddle is free to download; OGS Notify costs $0.99 up front. OGS Notify sells 2 one-off in-app purchases. ChessRiddle asks for nothing beyond the download.

UpkeepUpdate frequency

OGS Notify ships an update every 7 months, ChessRiddle every 6 weeks. Both last shipped on October 13, 2026.

Scorecard4 real differences · 6 level
OGS Notify versus ChessRiddle: the parameters behind the verdict, then further details
ParameterOGS NotifyChessRiddle
Price$0.99Free — better
Rating3.5 (6 ratings) — better—
Positive reviews22.2% of reviews—
Number of ratings6 — better—
Update frequencyEvery 7 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size9 MB98 MB
Age rating4+4+
DeveloperGunther CronenbergFelix Andreas Beck

In-app purchases

2 purchases

OGS Notify

One-time2
  • Green tea for Gunther$2.99
  • Burrito for Gunther$7.99
None

ChessRiddle

No in-app purchases

Questions

Is OGS Notify free?
OGS Notify costs $0.99, and also offers in-app purchases.
Is ChessRiddle free?
ChessRiddle is free to download, with no in-app purchases.
Do OGS Notify or ChessRiddle have ads?
Neither OGS Notify nor ChessRiddle shows ads.
Which is updated more often, OGS Notify or ChessRiddle?
OGS Notify ships an update every 7 months, and ChessRiddle every 6 weeks. Most recently, OGS Notify was updated on October 13, 2026 and ChessRiddle on October 13, 2026.

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