Comparison

Quantin vs DayInBook

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

Head to head
About

Quantin

Features
Read full description

Quantin is a revolutionary way to watch your cash flow live! Based on your inputs, see in one glance what your free cash flow is for a year, a month, a week, a day, an hour, every minute and even every second! Get motivated to spare a little more each month, See how much more passive income you should get to reach and maintain your financial freedom. Quantin does not grant any credit, it simply helps you summarise your finances in one look!

About

DayInBook

Features
Read full description

DayInBook is a personal finance tracker designed with one ultimate goal: "Financial Freedom." We believe that bookkeeping isn't just about tracking expenses—it's about auditing your life and planning your future. With DayInBook, you can: • Experience a minimalist and smooth tracking flow. • Use AI models to analyze your financial health. • Watch your "Financial Freedom Progress Bar" fill up as your passive income covers your expenses. Making saving money feel like an achievement. Data is securely synced via native iCloud. Terms of Use: https://caoyangup.com/blog/cashflow-fuwu-tiaokuan Privacy Policy: https://caoyangup.com/blog/cashflow-yinsi-zhengce

Screenshots

Quantin4 screens
DayInBook4 screens

Verdict

The call

The clearest difference is in-app purchases: Quantin at none against DayInBook's 4. Quantin also leads on device support (3 vs 1) and iOS requirement (10.3 vs 17.0). DayInBook's advantage is update cadence (every 3 days vs every 3 months). On price and ads 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. DayInBook sells 4 in-app purchases, starting at $1.99 per month. Quantin asks for nothing beyond the download.

UpkeepUpdate frequency

Quantin ships an update every 3 months, DayInBook every 3 days. Both last shipped on October 4, 2026.

Scorecard4 real differences · 2 level
Quantin versus DayInBook: the parameters behind the verdict, then further details
ParameterQuantinDayInBook
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.3 — better17.0
Further details — not scored
Size25 MB15 MB
Age rating4+4+
DeveloperLADONNEE Consulting SARL阳 曹

In-app purchases

None

Quantin

No in-app purchases

4 purchases

DayInBook

Subscriptions2
  • PRO月订阅$1.991 Month
  • PRO年订阅$9.991 Year
One-time2
  • AI积分100$1.99
  • AI积分1000$17.99

Questions

Is Quantin free?
Quantin is free to download, with no in-app purchases.
Is DayInBook free?
DayInBook is free to download, with in-app purchases available.
Do Quantin or DayInBook have ads?
Neither Quantin nor DayInBook shows ads.
Which is updated more often, Quantin or DayInBook?
Quantin ships an update every 3 months, and DayInBook every 3 days. Most recently, Quantin was updated on October 4, 2026 and DayInBook on October 4, 2026.

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