Comparison

Stringboard Chinese Keyboard vs Planet Ponder

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

Head to head
About

Stringboard Chinese Keyboard

Features
Read full description

WORRIED YOUR CHILD'S CHINESE IS SLIPPING? Stringboard turns Chinese writing practice into something they actually want to do. Start with a free 7-day challenge. One short mission a day, no pinyin needed. A GAME, NOT ANOTHER WORKSHEET Each daily mission teaches 3-4 characters through a walkthrough, then a game where they shoot down falling characters by typing the correct stroke order. Just 10 minutes a day makes all the difference. NO PINYIN. NO MEMORIZATION. Stringboard's stroke-and-radical keyboard works the way kids already learn to write. If they can write it, they can type it. Even 4-year-olds pick it up in minutes. TYPING IS WRITING PRACTICE Every character is typed by selecting the right strokes and radicals in the right order, the same skill they need on paper. Real handwriting reinforcement is built into every tap. BUILT FOR BUSY FAMILIES No extra tutors, no printing worksheets, no scheduling around an already-packed week. Just open the app after dinner or on the MTR home. CANTONESE, MANDARIN, OR BOTH Toggle between Traditional, Simplified, and Cantonese characters with one tap. Whether your child speaks Cantonese at home, Mandarin at school, or both, we’re here to support you. REAL-TIME FEEDBACK = INDEPENDENT PRACTICE Live stroke and radical hints mean your child can practice on their own. You're not coaching homework at 10pm anymore. FREE TO START The 7-day challenge is free forever, no card required. When they're ready for more, one subscription unlocks every lesson pack: the full Hong Kong P1–P6 Chinese curriculum, with unlimited practice. The Stringboard keyboard works across every app on their phone, and stays free for life. Loving Stringboard? A quick review helps other families find us! Need help? hello@stringboard.tech Video tutorial: https://youtu.be/zTGRsduVyoM Threads: @stringboardhk Instagram: @stringboardhk Privacy: stringboard.tech/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Planet Ponder

This app offers daily brain games for young learners, combining math challenges, word puzzles, and logic problems. It aims to build confidence in numbers, words, and problem-solving skills through engaging daily mysteries.

Highlights
  • Daily math games
  • Word puzzles and spelling
  • Number patterns
  • Logic puzzles
  • Collectible stickers
  • Designed for K-3 learners
Features
Read full description

Planet Ponder is a daily brain game for kids in Kindergarten through 3rd grade, combining quick math games, word puzzles, spelling challenges, number patterns, and logic puzzles into a fun daily learning habit. Each morning, kids get fresh mysteries to solve with Hapoo, Tapi, and Clover. Just a few minutes of pondering can help build confidence with words, numbers, patterns, reading, spelling, and problem-solving. WORDOEM WORLD Solve a daily word mystery! Read a short poem, follow the clues, discover the hidden word, and spell your answer tile by tile. Complete the mystery to earn a collectible sticker for your album. NUMBER NEBULA Blast off into quick math and number puzzles. Practice counting, number patterns, mental math, and number sense through short, playful challenges. WHY PLANET PONDER? • Daily puzzles - Fresh challenges arrive every morning. • Short and purposeful - A few minutes of active thinking instead of endless screen time. • Math + word skills - Practice numbers, patterns, spelling, reading, and logic. • Made for K - 3 - Designed for young learners building foundational skills. • Playful learning - Kids solve mysteries, collect stickers, and feel rewarded for thinking. • No worksheets - Brain-building practice wrapped in a game kids can enjoy. Make pondering part of the daily routine. Download Planet Ponder and give young minds a new mystery to solve every day.

Screenshots

Stringboard Chinese Keyboard4 screens
Planet Ponder4 screens

Verdict

The call

The clearest difference is in-app purchases: Planet Ponder at none against Stringboard Chinese Keyboard's 2. Planet Ponder also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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

Both are free to download. Stringboard Chinese Keyboard sells 2 in-app purchases, starting at $9.99 per month. Planet Ponder asks for nothing beyond the download.

UpkeepUpdate frequency

Stringboard Chinese Keyboard ships an update fortnightly, Planet Ponder every 2 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Stringboard Chinese Keyboard versus Planet Ponder: the parameters behind the verdict, then further details
ParameterStringboard Chinese KeyboardPlanet Ponder
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size238 MB75 MB
Age rating4+4+
DeveloperStringboard Technologies LtdHenry Leung

In-app purchases

2 purchases

Stringboard Chinese Keyboard

Subscriptions2
  • 月費計劃1 Month trial$9.991 Month
  • Annual plan1 Year trial$89.991 Year
None

Planet Ponder

No in-app purchases

Questions

Is Stringboard Chinese Keyboard free?
Stringboard Chinese Keyboard is free to download, with in-app purchases available.
Is Planet Ponder free?
Planet Ponder is free to download, with no in-app purchases.
Do Stringboard Chinese Keyboard or Planet Ponder have ads?
Stringboard Chinese Keyboard shows ads; Planet Ponder does not.
Which is updated more often, Stringboard Chinese Keyboard or Planet Ponder?
Stringboard Chinese Keyboard ships an update fortnightly, and Planet Ponder every 2 weeks. Most recently, Stringboard Chinese Keyboard was updated on November 4, 2026 and Planet Ponder on October 31, 2026.

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