Comparison

viber vs Calamus Ideas

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

Head to head
About

viber

Features
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Viber brings messaging-style chat and an AI assistant together, with Saudi Arabia in mind โ€” from +966 sign-in to a clear, modern experience for everyday use.

About

Calamus Ideas

Features
Read full description

Calamus Ideas is a notes and writing-tracker app for novelists and anyone working on a long project. WRITE THE NOTE BEFORE YOU LOSE IT Open the app, type, save. There is no project to pick and no file to name. Share an article from Safari and the link is attached to the note for you. FILE IT SO YOU CAN FIND IT Every note can carry a category, a pen name, and a book title. Eight categories are built in: Book Title, Character Name, Concept, Article, Phrase, Design, Musing, Other. Add your own. Create pen names and book titles inside the app. You do not have to set them up somewhere else first. COLLECT QUOTES Save lines from what you read, and from your own books. Quotes are grouped by pen name and book. Share a quote to any app on your phone. The book title and your buy link go with it. Quoting somebody else? Record who said it. FOCUS TIMER A Pomodoro timer for writing sittings. Set 5 to 90 minutes, in 5 minute steps. Put your own photograph behind the clock. Choose how it tells you time is up: a sound, a screen flash, or a vibration. Set it in Settings. When you finish, send the sitting to your writing log and add a note about what you got done. WRITING LOG Words written and words cut are counted as two separate numbers, because a day spent cutting is still a day of work. See both, by day. Keep a daily streak. Assign any session to a pen name and a book, or leave it unassigned. Log a session by hand, or send one straight from the Focus timer. WORKS WITH CALAMUS Everything saves to your account. The same notes, quotes, and log are on your Mac, your iPad, and in the browser. A note assigned to a book is waiting with that book when you sit down to write. Already own Calamus? Calamus Ideas is included. Sign in with the same account. SUBSCRIPTION Calamus Ideas, $4.99 per month, auto-renewing. Payment is charged to your Apple Account automatically unless you turn off auto-renew at least 24 hours before the period ends. Manage or cancel it in your Apple Account settings. Terms of Use: https://calamusapp.com/terms Privacy Policy: https://calamusapp.com/privacy Without an active subscription you can still read everything you wrote, take a full copy of it, and delete any of it. You cannot make changes.

Screenshots

viber4 screens
Calamus Ideas4 screens

Verdict

The call

The clearest difference is in-app purchases: viber at none against Calamus Ideas's 1. viber also leads on update cadence (every 3 days vs every 8 days) and device support (3 vs 1). On price and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Calamus Ideas sells 1 in-app purchase, starting at $4.99 per month. viber asks for nothing beyond the download.

UpkeepUpdate frequency

viber ships an update every 3 days, Calamus Ideas every 8 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard4 real differences ยท 2 level
viber versus Calamus Ideas: the parameters behind the verdict, then further details
ParameterviberCalamus Ideas
PriceFreeFree
Update frequencyEvery 3 days โ€” betterEvery 8 days
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size36 MB3 MB
Age rating4+12+
DeveloperAhmed ElghannamCalamus LLC

In-app purchases

None

viber

No in-app purchases

1 purchases

Calamus Ideas

Subscriptions1
  • Calamus Ideas$4.991 Month

Questions

Is viber free?
viber is free to download, with no in-app purchases.
Is Calamus Ideas free?
Calamus Ideas is free to download, with in-app purchases available.
Do viber or Calamus Ideas have ads?
Neither viber nor Calamus Ideas shows ads.
Which is updated more often, viber or Calamus Ideas?
viber ships an update every 3 days, and Calamus Ideas every 8 days. Most recently, viber was updated on October 25, 2026 and Calamus Ideas on October 29, 2026.

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