Comparison

Bluezone Pool vs Holler

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

Head to head
About

Bluezone Pool

Control your swimming pool's filter system and lighting directly from your smartphone. This app connects via Bluetooth to manage startup, timing, and monitor the status of your pool's equipment.

Highlights
  • Manual filter system startup
  • Spotlight control and timing
  • Filter cycle and lighting timing check
  • Equipment status monitoring
  • Filter pump problem detection
Features
Read full description

BZP is a new way to control your swimming-pool. This app allows to manage the swimming-pool controller BLE-pool only by using your smartphone, thanks to the integrated Bluetooth connection. With this app you can: - Start-up the filter system manually. - Turn on/off the spotlights of the swimming-pool and select the lighting timing. - Check the BLE-pool clock, the start/stop times of each filter cycle or lighting, in addition to the length of these cycles. - Know the state of the filter system and lighting. - Know if the filter pump has any problem.

About

Holler

Transform your Sonos speakers into a whole-home intercom system. Broadcast live messages, record and send announcements, or play pre-made sounds across one room or many. It's designed for privacy, working locally on your Wi-Fi without accounts or tracking.

Highlights
  • Whole-home intercom for Sonos
  • Live microphone broadcasts
  • Record and send announcements
  • Play pre-made sounds
  • Selectable room grouping
  • Restores previous Sonos settings
  • Local and private operation
Features
Read full description

Turn your Sonos speakers into a whole-home intercom. THREE WAYS TO BE HEARD • Live — start a continuous microphone connection without holding a button • Message — record a short announcement, then send it • Sounds — play ready-made household, attention, and ambience sounds ONE ROOM OR MANY Choose one room, select several rooms, or reach everywhere. Holler temporarily groups compatible rooms so announcements stay synchronized. LEAVES YOUR SONOS SYSTEM THE WAY IT FOUND IT When an announcement ends, Holler restores each room's previous grouping, playback, and volume whenever the speaker makes that state available. LOCAL AND PRIVATE BY DESIGN Holler works directly with speakers on your Wi-Fi. There is no Holler account, advertising, tracking, or Holler-operated audio relay. Remote broadcasting from outside your reachable home network is not supported. Keep Holler open while using Live. If the app leaves the foreground or the microphone is interrupted, Holler stops the broadcast and restores your Sonos system. TRY EVERYTHING All features are available during the seven-day trial. Afterward, one lifetime purchase unlocks Holler permanently—no subscription. Holler requires compatible Sonos speakers on a network your iPhone or iPad can reach. Sonos S1 and S2 systems remain separate and cannot be grouped together. Holler is an independent app and is not affiliated with, endorsed by, or sponsored by Sonos, Inc. Sonos is a trademark of Sonos, Inc. Included alarm and siren sounds are provided for entertainment and attention-getting use only. Holler is not an emergency warning or life-safety system.

Screenshots

Bluezone Pool4 screens
Holler4 screens

Verdict

The call

The clearest difference is rating: Holler at 5.0 against Bluezone Pool's 3.2. Holler also leads on update cadence (fortnightly vs every 7 months). Bluezone Pool's advantage is in-app purchases (none vs 1) and ratings volume (11 vs 1). On price, ads, device support 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. Holler sells 1 one-off in-app purchase. Bluezone Pool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Holler holds the better App Store score, 5.0 against 3.2. That said, the two scores are not equally well evidenced: Bluezone Pool has 11 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Bluezone Pool ships an update every 7 months, Holler fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 4 level
Bluezone Pool versus Holler: the parameters behind the verdict, then further details
ParameterBluezone PoolHoller
PriceFreeFree
Rating3.2 (11 ratings)5.0 (1 ratings) — better
Number of ratings11 — better1
Update frequencyEvery 7 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size2 MB5 MB
Age rating4+9+
DeveloperToscano Linea Electronica SLTask One LLC

Customer experience

Bluezone Pool

All ratings11 ratings
Positive45.5%
Neutral18.2%
Negative36.4%

Holler

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bluezone Pool

No in-app purchases

1 purchases

Holler

One-time1
  • Holler Pro$2.99

Questions

Is Bluezone Pool free?
Bluezone Pool is free to download, with no in-app purchases.
Is Holler free?
Holler is free to download, with in-app purchases available.
Which has better reviews, Bluezone Pool or Holler?
Holler is rated higher. Bluezone Pool averages 3.2 out of 5 from 11 ratings, while Holler averages 5.0 from 1 ratings.
Do Bluezone Pool or Holler have ads?
Neither Bluezone Pool nor Holler shows ads.
Which is updated more often, Bluezone Pool or Holler?
Bluezone Pool ships an update every 7 months, and Holler fortnightly. Most recently, Bluezone Pool was updated on November 3, 2026 and Holler on October 31, 2026.

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