Cerulean vs iSecretWorld
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cerulean
A collection of minimalist utility tools designed for simplicity and ease of use. Provides various small functions to help with everyday tasks. Feedback is welcomed for improvements and new ideas.
- Multiple utility tools
- Minimalist design
- Simple to use
- User feedback welcome
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多种小功能整理，极致简约。 如在使用中遇见任何问题或有新的创意，欢迎发送邮件反馈至我的邮箱cerulean_log@163.com，我会尽快处理哒。~~~
iSecretWorld
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专业电商 BI 数据分析管理平台，覆盖渠道、商品、推广、监控四大核心模块，专为电商商家、运营管理者打造。专业电商 BI 数据分析管理平台，覆盖渠道、商品、推广、监控四大核心模块，专为电商商家、运营管理者打造。 渠道模块：全渠道流量、营收、占比多维分析，清晰看透各渠道投产效果 商品模块：单品销量、毛利、动销排行，智能挖掘爆款与滞销商品 推广模块：投放费用、转化率、引流效果复盘，助力精准投放降本增效 监控模块：经营数据实时刷新，异常数据预警，随时随地掌握店铺动态 极简可视化报表，数据清晰易懂，不用电脑、不用复杂表格，手机就能完成全链路电商经营分析，做数据驱动的智慧运营。
Screenshots
Verdict
The clearest difference is update cadence: iSecretWorld at daily against Cerulean's every 2 months. iSecretWorld also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Cerulean ships an update every 2 months, iSecretWorld daily. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | Cerulean | iSecretWorld |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (392 ratings) — better | — |
| Positive reviews | 85.5% of reviews | — |
| Number of ratings | 392 — better | — |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | 丹 张 | 建华 姚 |
Bugs and requests
Cerulean
Reported bugs
9 issues- Ruler function has issues on iOS 17
- Volume is too low for sound-related features (metronome, call simulation)
- Search functionality is poor
- Calculator button missing on iPad Pro
- Ruler is inaccurate on 12 mini
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- Widget background is white, hard to see text
- Text to speech and keyboard issues on iPhone X
- Image stitching (chat history) missing on iPhone 12
- Widget support removed for iOS 13
Requested features
4 requests- Add more small features
- Add currency conversion function
- Add data and Chinese uppercase number conversion
- Consider adding various unit conversion functions
iSecretWorld
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cerulean
No in-app purchases
iSecretWorld
No in-app purchases
