Comparison

Mobile OTP Authenticator vs Sylva Deer Manager

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

Head to head
About

Mobile OTP Authenticator

Securely manage your two-factor authentication codes. Easily add accounts by scanning QR codes or manual entry. Protect your online accounts with industry-standard HOTP and TOTP algorithms.

Highlights
  • QR code scanning for account setup
  • Manual account entry
  • Secure data storage in iOS Keychain
  • Supports HOTP and TOTP algorithms
  • Works with popular services like Google, Facebook, Amazon
Features
Read full description

Scan the QR code issued by the two-factor authentication and automatically add the account you want to protect or select manual entry to manually set up the account. The account is stored in data security in the iOS key holder. The application supports all services that provide two-factor authentication using HOTP and TOTP algorithms. For example, Google, Facebook, Dropbox, Amazon, GitHub, Synology…. etc.

About

Sylva Deer Manager

Features
Read full description

Take your deer and wildlife management to the next level. SYLVA Deer Manager helps stalkers, deer managers, syndicates and estates record, organise and analyse deer management data, with statistics, graphs and data export tools to support decisions and reports. Use the mobile app to record stalks, sightings, shots, culls, notes and larder information while in the field or afterwards. You can also add carcass details, weights, body condition, parasites, lesions, other health findings and venison sales. The web dashboard gives a clearer view of what is happening over time, with charts, filters, statistics and downloadable data to help with reporting and management decisions. Different roles allow stalkers to keep their own records, while deer managers or group organisers can review wider activity where access has been given. Key features: • Useful for individual stalkers, deer managers, syndicates, groups and estates. • Cull, larder and carcass records and statistics. • Venison sales, income tracking and sales statistics. • Graphs, reports and data exports • Wildlife health observations and long-term deer management data. SYLVA is being developed with feedback from UK deer managers, stalkers and veterinarians, with more features and improvements on the way.

Screenshots

Mobile OTP Authenticator3 screens
Sylva Deer Manager4 screens

Verdict

The call

The clearest difference is update cadence: Sylva Deer Manager at weekly against Mobile OTP Authenticator's every 8 months. 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mobile OTP Authenticator ships an update every 8 months, Sylva Deer Manager weekly. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
Mobile OTP Authenticator versus Sylva Deer Manager: the parameters behind the verdict, then further details
ParameterMobile OTP AuthenticatorSylva Deer Manager
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 8 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size2 MB69 MB
Age rating4+4+
DeveloperAlbert PartiSylva Deer and Veterinary Services

In-app purchases

None

Mobile OTP Authenticator

No in-app purchases

None

Sylva Deer Manager

No in-app purchases

Questions

Is Mobile OTP Authenticator free?
Mobile OTP Authenticator is free to download, with no in-app purchases.
Is Sylva Deer Manager free?
Sylva Deer Manager is free to download, with no in-app purchases.
Do Mobile OTP Authenticator or Sylva Deer Manager have ads?
Neither Mobile OTP Authenticator nor Sylva Deer Manager shows ads.
Which is updated more often, Mobile OTP Authenticator or Sylva Deer Manager?
Mobile OTP Authenticator ships an update every 8 months, and Sylva Deer Manager weekly. Most recently, Mobile OTP Authenticator was updated on November 2, 2026 and Sylva Deer Manager on October 28, 2026.

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