Comparison

Leastimator vs TFAuth

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

Head to head
About

Leastimator

Easily track your leased car's mileage with this intuitive app. Visualize your progress with a line chart and get predictions to avoid exceeding your mileage limit. Set up vehicle profiles with lease details and monitor your driving habits.

Highlights
  • Mileage tracking for leased vehicles
  • Elegant line chart visualization
  • Predicted mileage calculation
  • Vehicle profile creation
  • Adjust driving based on limits
Features
Read full description

Leastimator shows you exactly where you stand on your lease mileage — today, not just at turn-in. Most mileage apps only give you a projection for lease end, which isn't much help when your driving changes month to month. Leastimator shows a clear over/under gauge every time you check, so you always know where you stand right now. A typical overage fee runs $0.15–$0.30 per mile. Go 2,000 miles over and that's a $500+ surprise at turn-in — the kind of bill Leastimator is built to help you avoid. KEY FEATURES • Real-time gauge — see if you're over, under, or right on pace, today • Turn-in projection — based on how you actually drive, not a flat average • Odometer history — log readings over time for more accurate projections • Home screen widget — check your status without opening the app • Smart reminders — get nudged to log a reading on a schedule or after driving TESLA INTEGRATION (Pro) Connect directly to the Tesla Fleet API for automatic odometer sync — no manual entry needed. Always up-to-date, always accurate. PRO FEATURES • Tesla auto-sync • Multiple vehicles • iCloud sync across all your devices • Remove ads • Custom dashboard layout Try Pro free for 7 days. To get started, enter your lease length, start date, and mileage allowance — Leastimator handles the math from there. Note: Projected mileage is an estimate based on your logged readings and may differ from your actual odometer at lease end. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

TFAuth

Features
Read full description

Secure, flexible two-factor authentication for all your Apple devices. This app helps you generate and manage Time-based One-Time Passwords (TOTP) with a focus on privacy, control, and convenience. Whether you prefer working fully offline or syncing with your own 2FAuth server, your authentication codes are always within reach. Secure by design • Protect access with Face ID, Touch ID, or PIN • Store TOTP secrets locally for offline code generation • Designed to keep your authentication data private and accessible only to you Available across your devices • Use on iPhone and iPad with a unified experience • Quickly view codes from your Apple Watch • Access codes directly in Safari with the extension Works online and offline • Generate codes locally without any server connection • Optionally sync with your 2FAuth server for multi-device access • Continue accessing codes even when your server is unavailable Multi-server support • Connect and manage multiple 2FAuth servers • View and organize codes from different servers in one place Organize your accounts • Group accounts for easier navigation • View both current and upcoming codes at a glance Account and server management • Add and edit accounts when connected to your server • Manage users and perform administrative actions (server-dependent) Built for users who want full control over their 2FA experience—whether self-hosted or fully local—without compromising on usability or security.

Screenshots

Leastimator4 screens
TFAuth4 screens

Verdict

The call

The clearest difference is ads: TFAuth at none against Leastimator's shown. TFAuth also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement 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. Leastimator sells 2 in-app purchases, starting at $2.99 per month and TFAuth sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Leastimator ships an update every 3 days, TFAuth every 5 days. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Leastimator versus TFAuth: the parameters behind the verdict, then further details
ParameterLeastimatorTFAuth
PriceFreeFree
Rating4.2 (50 ratings) — better—
Positive reviews45.5% of reviews—
Number of ratings50 — better—
Update frequencyEvery 3 days — betterEvery 5 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better17.6
Further details — not scored
Size9 MB16 MB
Age rating4+4+
DeveloperHao LiuAlex Khalkho

In-app purchases

2 purchases

Leastimator

Subscriptions2
  • Monthly7 Days trial$2.991 Month
  • Yearly7 Days trial$29.991 Year
2 purchases

TFAuth

One-time2
  • Pro$6.99
  • Pro+$9.99

Questions

Is Leastimator free?
Leastimator is free to download, with in-app purchases available.
Is TFAuth free?
TFAuth is free to download, with in-app purchases available.
Do Leastimator or TFAuth have ads?
Leastimator shows ads; TFAuth does not.
Which is updated more often, Leastimator or TFAuth?
Leastimator ships an update every 3 days, and TFAuth every 5 days. Most recently, Leastimator was updated on October 5, 2026 and TFAuth on October 1, 2026.

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