Comparison

Whats vs bookman

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

Head to head
About

Whats

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Discover Whats-Left - your key to financial clarity! Keep an eye on your budget: With Whats-Left you can immediately see how much money you have left at the end of the month. Simple and convenient: Add income and expenses without having to connect to your online banking. Flexible fixed costs: Define fixed costs and recurring payments in your individual rhythm, they are calculated automatically. Multiple accounts: Manage income and expenses on different bank accounts and credit cards. Synchronisation made easy: Thanks to iCloud, you can synchronise your financial data effortlessly between all your devices. Get Whats-Left today and master your finances with ease!

About

bookman

Features
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PRÜFEN. FREIGEBEN. BEZAHLEN. Und das von überall und jederzeit! bookman, die App für digitales Rechnungsmanagement. Alles, was Unternehmen mit eingehenden Rechnungen machen, geht mit bookman digital: Rechnungen prüfen, Freigabe-Workflows starten, Zahlungen durchführen, Belegablage und Weitergabe an die Finanzbuchhaltung/Steuerberatung: Alles vollständig digital, automatisiert und medienbruchfrei. Ganz egal, ob Startup, Familienunternehmen oder größere Organisation: bookman passt für alle Größenklassen und fügt sich nahtlos in bestehende Systeme ein. bookman wurde von Steuer-Experten entwickelt und begeistert mittlerweile mehr als 1.000 Unternehmen. Durch schlanke, digitale Prozesse und KI-gestützte Datenextraktion gewinnen Unternehmen wertvolle Zeit und digitalisieren einen zentralen Bereich ihrer Unternehmensverwaltung. Die Arbeitswelt wird immer mobiler. bookman läuft ortsunabhängig auf allen Systemen und Devices. So orientiert sich bookman an den heutigen Officekulturen und passt sich flexibel den Anforderungen an.

Screenshots

Whats4 screens
bookman4 screens

Verdict

The call

The clearest difference is in-app purchases: bookman at none against Whats's 1. bookman also leads on device support (3 vs 1) and iOS requirement (12.2 vs 16.0). On price, update cadence 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. Whats sells 1 one-off in-app purchase. bookman asks for nothing beyond the download.

UpkeepUpdate frequency

Whats ships an update every 3 weeks, bookman every 6 weeks. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 3 level
Whats versus bookman: the parameters behind the verdict, then further details
ParameterWhatsbookman
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.012.2 — better
Further details — not scored
Size20 MB156 MB
Age rating4+4+
DeveloperFlorian Kalekbookman Solutions GmbH

In-app purchases

1 purchases

Whats

One-time1
  • Whats-Left Premium$1.99
None

bookman

No in-app purchases

Questions

Is Whats free?
Whats is free to download, with in-app purchases available.
Is bookman free?
bookman is free to download, with no in-app purchases.
Do Whats or bookman have ads?
Neither Whats nor bookman shows ads.
Which is updated more often, Whats or bookman?
Whats ships an update every 3 weeks, and bookman every 6 weeks. Most recently, Whats was updated on October 25, 2026 and bookman on October 10, 2026.

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