Comparison

Nuki Smart Lock vs Fishtail App

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

Head to head
About

Nuki Smart Lock

Transform your smartphone into a secure digital key for your home. Grant and manage access for family and friends, and monitor who enters and when. Enjoy convenient features like automatic unlocking and locking, with easy DIY installation and smart home integration.

Highlights
  • Turn phone into a key
  • Share access permissions
  • Activity log
  • Auto Unlock/Lock
  • Night Mode
  • Smart Home integration
  • DIY installation
Features
Read full description

Turn your iPhone into a key – with Nuki Nuki: The retrofittable, smart door lock. Innovated in Austria – manufactured in Europe. APP REPLACES KEYS Turn your smart devices into keys. With the free Nuki app, you can open your door with your iPhone or your Apple Watch. Open the door with just one click, even remotely. SHARING KEYS Share access permissions with the Nuki app. Simple and secure. You decide who has access. With the activity log you always know who unlocked your door and when. SMART FEATURES Auto Unlock: Your door opens automatically when you come home. Auto Lock: Automatic locking, form maximum security. Night Mode: Activate various safety features during the night. Customize the night mode to your needs. SMART HOME INTEGRATIONS Easy and fast integration into your existing Smart Home. Thanks to Matter Nuki Smart Locks are compatible with most Smart Home systems. Matter ensures an easy and fast integration. EASY DIY INSTALLATION You can install the Nuki Smart Lock yourself within a few minutes. The Nuki app supports you with a step-by-step guide. See if Nuki is compatible with your door here: www.nuki.io/check SMART ACCESSOIRES The Nuki ecosystem offers you a variety of accessoires. Open fast via fingerprint or entry code with the Nuki Keypad 2 or simple and easy via button with the Nuki Fob. No smartphone needed. Get your Smart Lock now directly in our online shop: https://shop.nuki.io/ We’d love to hear from you. If you have questions about Nuki products please contact us at contact@nuki.io, or visit us on social media.

About

Fishtail App

Features
Read full description

Fishtail App assists the Artistic Swimming Community by offering tools simplifying the choreography of routines using the new rules and exporting codes for the Coach Card in easy illustrated steps. The Application offers multiple features using clear illustrations, updated descriptions and an integrated calculator. • Free Features: ◦ A Free Library with a search engine to learn more about the different codes and how they are applied. Including Hybrid and Acrobatic Codes. ◦ Catalogue of more than 500 examples of ACRO codes and a breakdown of each move. ◦ Create files to calculate and generate code for coach card. Includes Hybrid and ACRO. ▪ Import and Edit Examples from Catalogue. ▪ Read notes for each code to learn more about the definition, declaration, allowance and preferred execution. ▪ Record up to 3 Videos of the ACRO. ▪ Unlimited sharing with other users. ▪ View steps for each element with description, value and codes. ▪ Export PDF with code and full description of each component. ◦ Share your files with our international network of Technical Controllers to get their advice on declaration. •⁠ ⁠Hybrid builder calculator and code generator •⁠ ⁠⁠All codes are updated to January 2025 rules •⁠ ⁠Important version update: Mandatory email verification for all users •⁠ ⁠⁠Limit usage of filter per day for non-subscribers •⁠ ⁠New Hybrid Pattern Change (PC) sequence •⁠ ⁠⁠General improvement and bug fixes

Screenshots

Nuki Smart Lock4 screens
Fishtail App4 screens

Verdict

The call

Nuki Smart Lock and Fishtail App are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

ScorecardNo meaningful differences
Nuki Smart Lock versus Fishtail App: the parameters behind the verdict, then further details
ParameterNuki Smart LockFishtail App
PriceFreeFree
Rating4.7 (518 ratings) — better—
Positive reviews90.2% of reviews—
Number of ratings518 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size298 MB78 MB
Age rating4+4+
DeveloperNuki Home Solutions GmbHFishtail Digital Solutions

Bugs and requests

Nuki Smart Lock

Reported bugs

3 issues
  • Unreliable geofencing
  • Inconsistent unlock/lock functionality
  • Buggy app updates

Requested features

4 requests
  • Improved battery status monitoring
  • Customizable auto-lock/unlock timers
  • Stronger HomeKit/Alexa integration
  • Ability to create/share access codes

Fishtail App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Nuki Smart Lock

No in-app purchases

None

Fishtail App

No in-app purchases

Questions

Is Nuki Smart Lock free?
Nuki Smart Lock is free to download, with no in-app purchases.
Is Fishtail App free?
Fishtail App is free to download, with no in-app purchases.
Do Nuki Smart Lock or Fishtail App have ads?
Neither Nuki Smart Lock nor Fishtail App shows ads.
Which is updated more often, Nuki Smart Lock or Fishtail App?
Nuki Smart Lock ships an update every 3 weeks, and Fishtail App every 3 weeks. Most recently, Nuki Smart Lock was updated on November 2, 2026 and Fishtail App on October 30, 2026.

Other comparisons