Chalkee vs Koba
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chalkee
Send heartfelt, chalk-style handwritten messages to friends and family. Display messages on your home screen widget and receive real-time notifications. Premium features include wiggly handwriting, collaborative drawing, and more connections.
- Chalk-style handwritten messages
- Home screen widget display
- Real-time notifications
- Wiggly handwriting
- Collaborative drawing
- Connect with up to 20 people
- Unlock special chalk colors and backgrounds
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Chalkee is a handwriting widget app that lets you exchange heartfelt messages with your friends, partner, and family. 【Key Features】 ◆ Chalk-Style Handwritten Messages Create warm messages that look like they were written with chalk on a blackboard. Choose from colorful chalks and backgrounds to make your messages unique. ◆ Home Screen Widget Display received messages right on your home screen widget. See your loved ones' messages every time you look at your phone. ◆ Real-Time Notifications Get push notifications as soon as a new message arrives. Your widget updates automatically too. ◆ Simple to Use Just share an invite code to connect instantly. No complicated setup required. 【Chalkee Premium Features】 ◆ Wiggly Handwriting Your lines come alive and keep wiggling, even on your partner's board. Share them as a video, still in motion. ◆ Draw Together on a Shared Board Even when you're apart, take turns with your partner on the same board and finish one drawing together. ◆ Connect with More People Go premium to connect with up to 20 people. Stay close to all the people who matter most — friends, partners, and family. ◆ Shared Access for Two Only one person needs a subscription for both to enjoy all premium features. ◆ Unlimited Messaging Remove the daily limit and send as many messages as you like, anytime. ◆ Special Colors Unlock all 30 special chalk colors to express yourself more naturally. ◆ Premium Backgrounds Gain access to all exclusive blackboard textures and designs. 【Terms and Privacy】 Terms: https://ryuckle.com/app/chalkee/terms.html Privacy: https://ryuckle.com/app/chalkee/privacy.html 【Perfect For】 ・Best friends ・Couples or married partners ・Busy family members ・Those who want to exchange little messages daily ・Anyone who feels text messages aren't personal enough Deepen your bond with handwritten messages.
Koba
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Koba es una app para compartir momentos con un grupo cerrado de personas. Tomas una foto, tu círculo la ve una vez y desaparece. Pueden reaccionar o responderte. La foto se queda contigo, en tu perfil. Sin feed público. Sin audiencia abierta. Solo las personas que tú elegiste. Cómo funciona: - Compartes un drop con tu círculo - Lo ven una sola vez antes de que expire - Te responden en privado, con texto o nota de voz - La foto se queda en tu perfil También en Koba: - Chats uno a uno y en grupo con tu círculo - Notas en el pizarrón para decir que vas al gym, o lo que quieras - Ve quién de tu círculo está entrenando ahorita - Tu racha de días con drop, que solo ves tú Privacidad por diseño: - Nadie ve quién vio tu drop. - Koba comparte tu actividad, nunca tu ubicación. - Tu círculo lo defines tú y puedes ampliarlo cuando quieras. Koba Labs S.A.S. de C.V.
Screenshots
Verdict
The clearest difference is in-app purchases: Koba at none against Chalkee's 3. Koba also leads on ads (none vs shown). Chalkee's advantage is update cadence (every 9 days vs every 6 weeks). On price, 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
Both are free to download. Chalkee sells 3 in-app purchases, starting at $4.99 per month. Koba asks for nothing beyond the download.
Chalkee ships an update every 9 days, Koba every 6 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Chalkee | Koba |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (179 ratings) — better | — |
| Positive reviews | 63.2% of reviews | — |
| Number of ratings | 179 — better | — |
| Update frequency | Every 9 days — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 109 MB | 65 MB |
| Age rating | +4 | 17+ |
| Developer | Ryuta Ogawa | Emiliano Lozano |
In-app purchases
Chalkee
- Chalkee Premium Monthly$4.991 Month
- Chalkee Premium Yearly3 Days trial$39.991 Year
- Special Colors Full Set$2.99
Koba
No in-app purchases









