Comparison

SOTP Authenticator vs Crew Rest Pro

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

Head to head
About

SOTP Authenticator

Features
Read full description

SOTP is a free open source one time password generator that values your privacy. Key features: - No data is collected or sent anywhere - Secure data transfer - Apple Watch App - Dark theme - Import from Google Authenticator

About

Crew Rest Pro

Features
Read full description

Crew Rest Pro is a professional crew rest calculator built for pilots to plan, manage, and optimize inflight rest schedules with precision. Designed for real-world operations, the app helps flight crews quickly calculate rest rotations, ensuring balanced workload distribution and improved fatigue management on long-haul flights. With an intuitive interface and powerful features, Crew Rest Pro reduces complexity and allows you to focus on safe and efficient operations. Features • Instant Crew Rest Calculations: Quickly determine optimal rest periods between crew members. • Custom Crew Names: Assign real names instead of generic labels like CM1 or CM2. • Save & Share:Export rest plans as screenshots and share with your crew instantly. • History Log:Keep track of previous calculations for quick reference. • Operational Simplicity: Built for fast use in the cockpit and briefing environment.

Screenshots

SOTP Authenticator4 screens
Crew Rest Pro4 screens

Verdict

The call

The clearest difference is price: SOTP Authenticator at Free against Crew Rest Pro's $0.99. SOTP Authenticator also leads on iOS requirement (13.0 vs 15.1). Crew Rest Pro's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 5 months). On ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

SOTP Authenticator is free to download; Crew Rest Pro costs $0.99 up front. SOTP Authenticator sells 2 one-off in-app purchases. Crew Rest Pro asks for nothing beyond the download.

UpkeepUpdate frequency

SOTP Authenticator ships an update every 5 months, Crew Rest Pro daily. The most recent releases landed on September 16, 2026 and September 12, 2026 respectively.

Scorecard4 real differences Ā· 2 level
SOTP Authenticator versus Crew Rest Pro: the parameters behind the verdict, then further details
ParameterSOTP AuthenticatorCrew Rest Pro
PriceFree — better$0.99
Update frequencyEvery 5 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size20 MB43 MB
Age rating4+4+
DeveloperAnzhela Baroyanbillig.ch GmbH

In-app purchases

2 purchases

SOTP Authenticator

One-time2
  • One dollar donation$0.99
  • Five dollar donation$4.99
None

Crew Rest Pro

No in-app purchases

Questions

Is SOTP Authenticator free?
SOTP Authenticator is free to download, with in-app purchases available.
Is Crew Rest Pro free?
Crew Rest Pro costs $0.99, with no in-app purchases.
Do SOTP Authenticator or Crew Rest Pro have ads?
Neither SOTP Authenticator nor Crew Rest Pro shows ads.
Which is updated more often, SOTP Authenticator or Crew Rest Pro?
SOTP Authenticator ships an update every 5 months, and Crew Rest Pro daily. Most recently, SOTP Authenticator was updated on September 16, 2026 and Crew Rest Pro on September 12, 2026.

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