Comparison

ReadInTime vs Library Calculator

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

Head to head
About

ReadInTime

Features
Read full description

Use ReadInTime to help pace your reading so you can finish a book by a particular date and not have to cram at the end. Each time you read, ReadInTime tracks your time and the last page you read. It then tells you how much you need to read each day to meet your target date. It's useful for: • Library books • Reading assignments at school • Upcoming book club meetings • Motivating yourself to read more The free version tracks one book at a time on one device. A Premium Subscription gives you these added benefits: • Unlimited number of books in your reading list • Your data is synced between all your devices and backed up to the cloud • Notifications up to twice a day to remind you to read to meet your daily target • Access to a private web address to display your reading progress on a dashboard (like DAKboard)

About

Library Calculator

This app helps you manage your reading goals by calculating the daily pages needed to finish a book by its due date. Easily input your current progress and the book's total pages to get a clear reading schedule.

Highlights
  • Daily page calculation for due dates
  • Update current page number
  • Recalculate daily reading count
  • Simple and quick interface
Features
Read full description

Library Calculator makes it easy to keep track of how many pages you need to read per day to finish your book by its due date. Enter your current page number, the total number of pages, & the due date. Library Calculator will display the number of pages you need to read each day leading up to your due date to finish your book on time. Features: • Quick and simple page calculation for upcoming due dates. • Update Page Numbers: Allows you to change your current page number to recalculate your daily count.

Screenshots

ReadInTime3 screens
Library Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Library Calculator at monthly against ReadInTime's every 2 months. ReadInTime's advantage is iOS requirement (14.2 vs 18.4). 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. ReadInTime sells 1 in-app purchase, starting at $3.99 per year and Library Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ReadInTime ships an update every 2 months, Library Calculator monthly. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 7 level
ReadInTime versus Library Calculator: the parameters behind the verdict, then further details
ParameterReadInTimeLibrary Calculator
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.2 — better18.4
Further details — not scored
Size55 MB3 MB
Age rating4+4+
DeveloperGlen BoeseLogan Voss

In-app purchases

1 purchases

ReadInTime

Subscriptions1
  • ReadInTime Premium Yearly$3.991 Year
1 purchases

Library Calculator

One-time1
  • Reading Notifications$0.99

Questions

Is ReadInTime free?
ReadInTime is free to download, with in-app purchases available.
Is Library Calculator free?
Library Calculator is free to download, with in-app purchases available.
Do ReadInTime or Library Calculator have ads?
Neither ReadInTime nor Library Calculator shows ads.
Which is updated more often, ReadInTime or Library Calculator?
ReadInTime ships an update every 2 months, and Library Calculator monthly. Most recently, ReadInTime was updated on September 28, 2026 and Library Calculator on October 3, 2026.

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