E vs StampMap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
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石基昆仑酒店无纸化系统帮助酒店提升入住服务和入住效率，不再停留在使用传统纸张签字，而是在具有灵敏压感的触摸屏上电子签名，并将签署单自动存储到后台管理系统，无纸化电子签名系统不仅推动了酒店业现代化的进程，也大大倡导了绿色低碳环保的理念。
StampMap
Discover and log unique stamps from around the world, including scenic, museum, and post office stamps. Create a personal log with photos, dates, and locations to build a comprehensive stamp collection and turn each stamp into a travel memory.
- Discover global stamp spots
- Record stamp photos, dates, and locations
- Organize personal stamp collection
- Build stamp album and map
- Track travel journeys with stamps
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Collect every stamp and record every journey. "Stamp Map" is designed for stamp collecting enthusiasts. Discover and record Goshuin, postmarks, scenic stamps, and commemorative stamps. Discover global stamp spots - Scenic stamps - Museum stamps - Post office stamps - Japanese Goshuin - Local special stamps Track your stamp collection journey - Save stamp photos - Record date and location - Create your personal stamp log - Organize your stamp collection Build your stamp collection - Stamp album - Stamp map - Stamp collection Popular cities: Shanghai stamps, Beijing stamps, Nanjing stamps, Hangzhou stamps, Tokyo Goshuin, Kyoto Goshuin Discover more hidden stamp spots Start recording your stamp journey and make every stamp a travel memory. --------------------- ◆ "Lifetime Membership" is a one-time purchase for permanent ownership. ◆ "Annual Membership" operates on an automatic subscription model. 1. Payment: After users confirm the purchase and make payment, it will be charged to the iTunes account. 2. Subscription cancellation: To cancel the renewal, please turn off the auto-renewal feature in iTunes/Apple ID settings at least 24 hours before the current subscription period ends. Cancelling within 24 hours of expiration will incur subscription charges. 3. Renewal: Apple iTunes account will be charged within 24 hours prior to expiration, extending the subscription period by one cycle upon successful payment. ◆ Privacy Policy: https://ovd21e8m8mf.feishu.cn/docx/U0xkdAghFoJH68xrKAQcJZ6Enbe ◆ Terms of Service: https://ovd21e8m8mf.feishu.cn/docx/JXyMdHkd1oSSr8xecgtcZShknie
Screenshots
Verdict
The clearest difference is in-app purchases: E at none against StampMap's 5. E also leads on iOS requirement (12.1 vs 15.0). StampMap's advantage is update cadence (weekly vs every 2 months) and device support (3 vs 1). On price and ads 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. StampMap sells 5 in-app purchases, starting at $0.99 per month. E asks for nothing beyond the download.
E ships an update every 2 months, StampMap weekly. The most recent releases landed on September 16, 2026 and September 24, 2026 respectively.
| Parameter | E | StampMap |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (23 ratings) — better |
| Positive reviews | — | 69.2% of reviews |
| Number of ratings | — | 23 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 27 MB | 65 MB |
| Age rating | 4+ | 17+ |
| Developer | 北京石基昆仑软件有限公司 | Lawliet Co., Ltd |
In-app purchases
E
No in-app purchases
StampMap
- Monthly Subscription$0.991 Month
- 7-Day VIP$0.997 Days
- Annual VIP$3.991 Year
- LifeTimeVIP(Discount)$5.99
- Lifetime VIP$12.99
