Comparison

Flowen vs Silica

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

Head to head
About

Flowen

Features
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Open and start writing. Flowen is a simple notepad you can personalize with photos and videos. Capture an idea, a shopping memo, or a draft for work right where you open the app. Save only what you want to keep as a note. No account required. No ads. Your everyday notes, your own style • Set your own photo or video as the header at the top of the screen • Choose a cute photo, a stylish landscape, or an understated look • Animated headers are also available • Give each tab a different header, or show the same header across all tabs • Choose light or dark appearance Write the moment an idea arrives • Open straight into Quick Note and start writing • Return to the tab you last used • Save anything you want to keep as a note • Open a selected tab from Home Screen or Lock Screen widgets • Use Siri and Shortcuts to search, open, read aloud, or add notes Take notes with your voice • Turn speech into text in real time • Keep dictating while using other apps or with the screen locked • Voice transcription is processed on your device Organize in tabs and find notes quickly • Create tabs for work, family, ideas, and more • Swipe to switch tabs • Search Quick Notes and saved notes together • Pin an important note to its tab or across all tabs • Reorder, merge, and rename notes • Use the editing lock to prevent accidental changes Your data stays on your device • Notes are stored locally • No account, tracking, or third-party advertising SDKs • Export and restore backup files • Automatically create restore points when iCloud Drive is available Included for free • Up to 3 tabs • Up to 5 saved notes per tab • 3 header slots • 1 video header slot. Replace its video whenever you like More room with Premium • Up to 9 tabs • Up to 15 saved notes per tab • Set video headers in up to 9 slots • Change theme colors Premium is a one-time purchase. There is no subscription. Start writing instantly. Make it your own. Keep your everyday notes in Flowen.

About

Silica

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Silica is a location and stay history app for giving AI your actual activities—not your plans. It automatically records the places you visit and how long you stay on your iPhone. Review where you went and how long you stayed in a daily timeline and map. You do not need to open the app every day. 【Key Features】 • Automatically record places visited and stay durations in the background • View activity history in a daily timeline and map • See travel modes such as walking, cycling, and driving • Optionally connect Health to view and export steps, walking/running distance, and active calories • Save frequently visited places • Manually or automatically export history to Markdown or Notion • Use exported history as context for any AI agent or knowledge tool Silica does not include built-in AI. It is a recording foundation for giving your AI real-world activity data. 【Features】 • Location history is primarily stored on your device. Only selected logs are sent to Notion when Notion integration is enabled • No ads or advertising tracking • Minimal use of location services enables low-power recording Background recording requires Always location access and Precise Location. Records may contain omissions or inaccuracies depending on the device and environment. Some features require Silica Pro. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Flowen4 screens
Silica4 screens

Verdict

The call

The clearest difference is update cadence: Silica at every 2 days against Flowen's fortnightly. Silica also leads on iOS requirement (17.0 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flowen sells 1 one-off in-app purchase and Silica sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flowen ships an update fortnightly, Silica every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 4 level
Flowen versus Silica: the parameters behind the verdict, then further details
ParameterFlowenSilica
PriceFreeFree
Update frequencyFortnightlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS26.017.0 — better
Further details — not scored
Size6 MB26 MB
Age rating4+4+
DeveloperKota TorimaruTaketo Fujimaki

In-app purchases

1 purchases

Flowen

One-time1
  • Flowen Premium$9.99
3 purchases

Silica

Subscriptions2
  • Silica Pro Monthly$1.991 Month
  • Silica Pro Annual$17.991 Year
One-time1
  • Silica Pro Lifetime$29.99

Questions

Is Flowen free?
Flowen is free to download, with in-app purchases available.
Is Silica free?
Silica is free to download, with in-app purchases available.
Do Flowen or Silica have ads?
Neither Flowen nor Silica shows ads.
Which is updated more often, Flowen or Silica?
Flowen ships an update fortnightly, and Silica every 2 days. Most recently, Flowen was updated on October 24, 2026 and Silica on October 29, 2026.

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