Comparison

Aqua_Smart vs One Country

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

Head to head
About

Aqua_Smart

Features
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Supports aquarium maintenance. You can name and manage up to 10 aquariums. Displays the time to change the water, the time to clean the filter, and the quality of water (pH, TDS, NH3, etc.). Quality criteria can be set individually for each aquarium. Results can be sent by e-mail after maintenance. After learning how to use it, you can also enjoy a slideshow with your aquarium photos. Items that can be managed are as follows. - Filter maintenance: date and time, elapsed days, two-stage alarm - Water exchange: date and time, elapsed days, two-stage alarm - PH: Measurement date and time, measured value, lower limit, upper limit - TDS: Measurement date and time, measurement value, 2 levels of alarm level - NH3: Measurement date and time, measurement value, 2 levels of alarm level - HNO2: Measurement date and time, measurement value, 2 levels of alarm level - HNO3: Measurement date and time, measurement value, 2 levels of alarm level - launch: date and time, elapsed days, memo 1, memo 2 - Reserve 1-3: Date and time, elapsed days, memo 1, memo 2 - Reserve 1-3 (with alarm): Date and time, number of days elapsed, memo 1, number of alarm days - Aquarium volume calculation: width, depth, height - Salt bath salt content calculation: salt content, aquarium volume, salt concentration - Calculation of medicinal bath dosage: dosage, aquarium volume, instruction hydrological quantity, instruction dosage

About

One Country

Access exclusive content, enter giveaways, and stream ad-free radio. This app offers behind-the-scenes artist access and supports charitable causes.

Highlights
  • Massive giveaways
  • Exclusive content
  • Ad-free radio streaming
  • Track and move entries
  • Behind-the-scenes access
  • Community support for causes
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Country’s All-Access Pass Unlock the ultimate fan experience with massive giveaways, exclusive content, tickets to the hottest shows, and more—all in one place. Track & Move Your Entries See all your active entries and shift them toward the prizes you want most. Stream One Country Radio Ad Free From today’s hits to deep cuts. It’s your ultimate playlist loaded with in-app perks and bonuses. Exclusive Content Watch original video series, listen to podcasts, and get behind the scenes access to the artists you love. Give Back with Us Be part of a community that celebrates generosity, shines a light on real stories, and supports causes across the country. Download the app. Join the One Country community.

Screenshots

Aqua_Smart4 screens
One Country4 screens

Verdict

The call

The clearest difference is price: One Country at Free against Aqua_Smart's $2.99. Aqua_Smart's advantage is iOS requirement (12.0 vs 15.1). On update cadence, 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

One Country is free to download; Aqua_Smart costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Aqua_Smart ships an update every 2 months, One Country monthly. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
Aqua_Smart versus One Country: the parameters behind the verdict, then further details
ParameterAqua_SmartOne Country
Price$2.99Free — better
Rating—4.8 (2.3K ratings) — better
Positive reviews—54.2% of reviews
Number of ratings—2.3K — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size38 MB41 MB
Age rating4+17+
Developerkazunori uedaOC Media Holdings LLC

Bugs and requests

Aqua_Smart

Not enough reviews yet to summarise bugs or requests.

One Country

Reported bugs

3 issues
  • Inability to access app due to login issues
  • Crashes and freezes during use
  • Inconsistent app behavior across devices

Requested features

3 requests
  • Add phone support for customer service
  • Improve account management options
  • Enhance mobile app functionality

In-app purchases

None

Aqua_Smart

No in-app purchases

None

One Country

No in-app purchases

Questions

Is Aqua_Smart free?
Aqua_Smart costs $2.99, with no in-app purchases.
Is One Country free?
One Country is free to download, with no in-app purchases.
Do Aqua_Smart or One Country have ads?
Neither Aqua_Smart nor One Country shows ads.
Which is updated more often, Aqua_Smart or One Country?
Aqua_Smart ships an update every 2 months, and One Country monthly. Most recently, Aqua_Smart was updated on November 3, 2026 and One Country on November 7, 2026.

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