Comparison

Spark vs Ukiyo

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

Head to head
About

Spark

Personalize your iPhone and Apple Watch with a vast collection of high-quality wallpapers and watch faces. Discover exclusive designs, enjoy a seamless display, and easily find your favorites with intuitive navigation. Refresh your devices with elegant and unique aesthetics.

Highlights
  • Exclusive wallpaper and watch face collection
  • Optimized for perfect device fit
  • Easy navigation and search
  • Favorites folder for quick access
  • Premium and exclusive designs
Features
Read full description

Welcome to Spark Pro Screensavers, the ultimate destination for personalizing your iPhone and Apple Watch. Our app offers an expansive collection of meticulously curated wallpapers and watch faces designed to bring your devices to life. Whether you're looking to refresh your phone's home screen or give your wrist a touch of elegance, Spark Pro Screensavers has everything you need. Features: Exclusive Collection: Discover a wide variety of high-quality wallpapers and watch faces. Our collection is regularly updated to ensure there's always something new to explore. Perfect Fit: Each wallpaper and watch face is optimized for the perfect fit on your device, ensuring a seamless and stunning display on both iPhones and Apple Watches. Easy Navigation: Browse through categories or use our search feature to find exactly what you're looking for. Our user-friendly interface makes customization fun and effortless. Favorites Folder: Save your top picks in a Favorites folder for quick access to the designs you love most. Premium Quality: Experience the best with Spark Pro Screensavers. Our premium selection offers exclusive designs that you won't find anywhere else. --------------------------------- Premium subscription options for Spark: Pro Screensavers include: Weekly Subscription: $4.99 per week, with a 3-day free trial or without a free trial. Lifetime Access: A one-time payment of $19.99. The premium subscription provides unlimited access to the Spark: Pro Screensavers All subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the rate selected. Payment will be charged to your iTunes account upon confirmation of purchase. Subscriptions can be managed, and auto-renewal can be turned off, by visiting Account Settings in iTunes after purchase. Any unused portion of a free trial, if applicable, will be forfeited upon purchasing a subscription. Terms of Use: https://www.danarapps.com/terms-of-use-privacy-policy/terms-of-use Privacy Policy: https://www.danarapps.com/terms-of-use-privacy-policy/privacy-policy

About

Ukiyo

This app turns your daily walks into an engaging journey through historical Japan. Track your steps and calories burned while discovering trivia about post towns and viewing different artistic interpretations of the Tokaido 53 Stations. It offers both automatic and manual step input for flexible health management.

Highlights
  • Pedometer and calorie tracking
  • Historical post town trivia
  • Multiple art versions of Tokaido 53 Stations
  • Automatic and manual step input
  • Calorie-based food recommendations
  • AI-generated programming
Features
Read full description

Aim for Kyoto from Edo with Edonosuke and Ukiyo Komachi using a pedometer! Manage your health in a fun way while checking your consumed calories! ■ Abundant Post Town Trivia! We introduce interesting trivia for each post town. Enjoy a few "oh wow" moments! ■ Many Different Versions of the Tokaido 53 Stations Included! Hiroshige, who loved the Tokaido, drew the 53 Stations multiple times throughout his life. We've included many different versions for each post town! ■ Fun Calorie Check! Calculate your daily calories burned based on your steps and weight! In the "What Should I Eat Today?" section, we funly introduce the "allowed amount" of food, calculated from your burned calories! ■ Manual Input Feature! We offer two methods for step data: auto input (automatically imported from Apple HealthKit) and manual input (allowing you to record and correct data up to 7 days back)! ■ Step Counter Included! Want to only record the steps taken during exercise? Want to record just the steps while running? To meet these needs, we've included a Step Counter. Use it in conjunction with manual input and stride length settings! ■ Programming is All AI-Made! The actual code for this app was entirely created by AI. Humans only provided the prompts. It's amazing what AI can accomplish on its own!

Screenshots

Spark4 screens
Ukiyo4 screens

Verdict

The call

The clearest difference is rating: Spark at 2.9 against Ukiyo's 1.0. Spark also leads on ratings volume (203 vs 1) and update cadence (every 3 weeks vs every 3 months). Ukiyo's advantage is ads (none vs shown) and monetization model (paid vs subscription). On price, review sentiment, 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. Spark sells 6 in-app purchases, starting at $4.99 per 7 days and Ukiyo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spark holds the better App Store score, 2.9 against 1.0. That said, the two scores are not equally well evidenced: Spark has 203 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 4% of Spark's written reviews are positive against 0% of Ukiyo's.

UpkeepUpdate frequency

Spark ships an update every 3 weeks, Ukiyo every 3 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
Spark versus Ukiyo: the parameters behind the verdict, then further details
ParameterSparkUkiyo
PriceFreeFree
Rating2.9 (203 ratings) — better1.0 (1 ratings)
Positive reviews3.6% of reviews — better0.0% of reviews
Number of ratings203 — better1
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionPaid — better
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS14.7 — better16.0
Further details — not scored
Size194 MB201 MB
Age rating4+4+
DeveloperDanute NoreikaTARO TATSUMI

Customer experience

Spark

All ratings204 ratings
Positive46.1%
Neutral3.4%
Negative50.5%
Written reviews112 reviews
Positive3.6%
Neutral2.7%
Negative93.8%

Ukiyo

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Spark

Reported bugs

4 issues
  • Watch faces disappear after a short time
  • Faces not available as advertised
  • Syncing issues
  • Compatibility problems

Requested features

3 requests
  • Permanent watch face option
  • Better integration with Apple Watch
  • More watch face options

Ukiyo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Spark

Subscriptions5
  • Spark PRO - Premium week.3 Days trial$4.997 Days
  • Spark PRO - Premium Week.$4.997 Days
  • Full Access$9.991 Month
Show 2 more
  • Full Access$19.991 Month
  • Full Access$39.991 Year
One-time1
  • Spark PRO - Lifetime Premium.$19.99
1 purchases

Ukiyo

One-time1
  • Full Version$1.99

Questions

Is Spark free?
Spark is free to download, with in-app purchases available.
Is Ukiyo free?
Ukiyo is free to download, with in-app purchases available.
Which has better reviews, Spark or Ukiyo?
Spark is rated higher. Spark averages 2.9 out of 5 from 203 ratings, while Ukiyo averages 1.0 from 1 ratings.
Do Spark or Ukiyo have ads?
Spark shows ads; Ukiyo does not.
Which is updated more often, Spark or Ukiyo?
Spark ships an update every 3 weeks, and Ukiyo every 3 months. Most recently, Spark was updated on October 24, 2026 and Ukiyo on October 28, 2026.

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