ColorChi vs Postmello
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ColorChi
This app provides a daily color recommendation based on your personal energy profile and the day's energy. It offers reasoning, outfit suggestions, and a forecast to help you plan your day and build a simple morning habit.
- Daily color recommendation
- Wear and avoid colors
- Outfit and accessory ideas
- Energy index and forecast
- Morning habit streaks
- Home-screen widget
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ColorChi tells you the one color to wear today — and why. Every morning, ColorChi reads the day's energy against your personal profile and gives you a single color to lean on, plus the ones to skip. No vague horoscopes — you get a clear pick, the reasoning behind it, and outfit + accessory ideas you can actually wear. • Today's color — your daily pick, in plain English • Wear & avoid — colors that work for you today • Outfit & accessory ideas — matched to the color and your weather • Energy index — how the day lines up for you • 3-day forecast — plan ahead • Streaks — build a simple morning habit • Home-screen widget — your color, every day Start free. Unlock the full daily reading, forecast and more with Premium ($0.99/mo or $9.99/yr). For lifestyle inspiration and entertainment. Terms of Use (EULA): https://colorchi.vercel.app/terms Privacy Policy: https://colorchi.vercel.app/privacy
Postmello
Create and send personalized digital letters with friends and family. Design unique desks, choose stationery, and add custom stamps. Enjoy a connected experience without the pressure of constant notifications.
- Write and draw digital letters
- Customize desks and stationery
- Add stickers and stamps
- Send letters to friends and family
- Receive replies via email
- PIN-protected privacy settings
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Keep in touch without texting. Write and draw digital letters with friends and family, on iPhone and iPad. Choose the paper, write, draw or type, add stickers, stamp the envelope and send. A whole letter, made for someone. Their very own place: a desk that feels like them, and papers, envelopes, stamps and stickers in every collection. Connected, not always on. No chat bubbles, typing dots or read receipts, just a mailbox flag when a letter arrives. Their independence, your boundaries. Only friends you approve, settings behind your PIN, no photos or videos, and letters can't be forwarded. Friends and family without the app write back by email, and their reply arrives as a letter: words only, with no links, photos or attachments. Desks, friends, letters and replies are free, with up to six desks in one account. Collections are optional one-time purchases, yours to keep. No ads, and we never sell personal data. Terms of Use: https://postmello.com/terms End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is iOS requirement: ColorChi at 16.4 against Postmello's 18.0. On price, rating, review sentiment and ratings volume 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. ColorChi sells 2 in-app purchases, starting at $0.99 per month and Postmello sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for ColorChi against 5.0 for Postmello. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | ColorChi | Postmello |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 189 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Poyu Chuang105927387861 | Postmello LLC |
Customer experience
ColorChi
Postmello
In-app purchases
ColorChi
- ColorChi Premium$0.991 Month
- ColorChi Premium$9.991 Year
Postmello
- Sakura Post$0.99
- Fairy Glen$0.99
- Ironhold$0.99
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- Ember Peak$0.99
- Fossil Camp2 variants$0.99
- Lunar Base2 variants$0.99
- Sandy Beach2 variants$0.99









