Comparison

Mosaic Days vs YiKey

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

Head to head
About

Mosaic Days

Features
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【Mosaic Days — pieces of your day, in one place】 Stop juggling a dozen apps. Track expenses, manage assets, plan tasks, send quotes, organize contacts, and save your favorite spots — all from one beautifully simple app. 【SIX CORE MODULES】 EXPENSE TRACKING — Effortless Snap receipts and let on-device OCR fill in the amount and items automatically Just say "lunch, twelve bucks" — voice entry runs fully offline Geofence reminders nudge you when you walk into a regular stop (coffee shop, convenience store, etc.) Multi-ledger, category budgets, and a "wish jar" savings tool ASSETS & WEALTH — See the full picture Track cash, bank accounts, stocks, mutual funds, insurance, and physical assets in one view Stock holdings link automatically to their transaction history Net-worth and spending trends visualized over time SMART TODO — Beyond a checklist Standard, recurring, and location-based to-dos in one place Multi-group, tags, priority levels QUOTES & INVOICES — Built for freelancers Manage companies, clients, and a product catalog Generate professional PDF quotes in one tap Due dates sync to Apple Calendar and Reminders Track status after sending CONTACTS CRM — Powerful but simple Scan business cards with OCR auto-fill Log visits, build email templates, view contacts on a map Group, tag, and set follow-up reminders SAVED PLACES — Your personal map One-tap save the spots you find on Instagram Browse via photo wall, Story mode, or spin a roulette to decide where to eat tonight Plan routes and group your collections 【MORE LIFE MODULES】 Custom keyboard shortcuts, pet care logs, fitness journal, daily journal and mood diary, retro camera with 50+ LUT filters, travel planner, bill manager, receipt gallery, geofence notifications — all in one app. 【PRIVACY-FIRST BY DESIGN】 Almost everything stays on your device. Expenses, todos, contacts, quotes, photos, journals, pets, fitness — none of it is uploaded to the cloud. Only "Saved Places" syncs optionally, so you can access your map across devices. OCR runs on-device via Google ML Kit. Voice recognition runs on-device via whisper.rn. Your receipts and voice never leave your phone. 【HOW IT WORKS — Free with rewarded ads】 Free: Watch 1 rewarded ads per day to unlock all premium features until midnight Yearly: NT$2,000 / year Lifetime: NT$1,500 (limited to 500 seats, early-launch only) "Lifetime" refers to as long as the service remains in operation. 【SUBSCRIPTION TERMS】 Payment is charged to your Apple ID at confirmation of purchase Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period Manage or cancel anytime in your Apple ID settings Terms of Service: https://easyledger.org/terms Privacy Policy: https://easyledger.org/privacy

About

YiKey

Features
Read full description

YiKey is a Traditional Chinese Zhuyin keyboard built for people who switch between Chinese and English all day. Type in Zhuyin with fast local candidates, translate the text around your cursor, and use Voice Pad to dictate a sentence before sending it back to the keyboard. Key features: - Traditional Chinese Zhuyin input with phrase candidates - Chinese to English and English to Traditional Chinese translation suggestions - Voice Pad for speech-to-text handoff - Translation replacement flow for newly dictated or typed text - Privacy-aware release build that sends translation requests through a configured proxy and does not store a DeepL API key in the app Online translation requires enabling Allow Full Access for the keyboard so iOS permits network requests. You can still use the keyboard without online translation when Full Access is disabled.

Screenshots

Mosaic Days4 screens
YiKey3 screens

Verdict

The call

The clearest difference is in-app purchases: YiKey at none against Mosaic Days's 4. YiKey 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. Mosaic Days sells 4 in-app purchases, starting at $49.99 per year. YiKey asks for nothing beyond the download.

UpkeepUpdate frequency

Mosaic Days ships an update every 2 days, YiKey every 3 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 4 level
Mosaic Days versus YiKey: the parameters behind the verdict, then further details
ParameterMosaic DaysYiKey
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 3 days
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.417.0 — better
Further details — not scored
Size666 MB50 MB
Age rating17+4+
DeveloperLai GuanweiChiunluen Meng cao

In-app purchases

4 purchases

Mosaic Days

Subscriptions3
  • Beauty Pro – 5 Staff Plan$49.991 Year
  • pro subscription$59.991 Year
  • Beauty Pro – 10 Staff Plan$99.991 Year
One-time1
  • Permanently unlocked$49.99
None

YiKey

No in-app purchases

Questions

Is Mosaic Days free?
Mosaic Days is free to download, with in-app purchases available.
Is YiKey free?
YiKey is free to download, with no in-app purchases.
Do Mosaic Days or YiKey have ads?
Mosaic Days shows ads; YiKey does not.
Which is updated more often, Mosaic Days or YiKey?
Mosaic Days ships an update every 2 days, and YiKey every 3 days. Most recently, Mosaic Days was updated on October 31, 2026 and YiKey on October 31, 2026.

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