Comparison

Bluetooth Loudspeaker vs Days Mark

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

Head to head
About

Bluetooth Loudspeaker

Amplify your voice through a connected Bluetooth speaker. Use your iPhone or iPad as a wireless microphone for karaoke, teaching, performances, or announcements. Run other music apps in the background for a complete audio experience.

Highlights
  • Amplify voice to Bluetooth speakers
  • Use iPhone/iPad as wireless microphone
  • Background app operation
  • Karaoke singing
  • Volume booster/megaphone
  • Wireless audio amplification
Features
Read full description

Do you want to boost your voice in the public, or love to sing karaoke? If you have a portable bluetooth speaker, this app is a must for your iPhone / iPad. Bluetooth Loudspeaker is an app to amplify your voice output to your wireless connected bluetooth speaker. That is, your iPhone becomes the microphone and the bluetooth speaker becomes a remote loudspeaker within 10 meters distance. As this app can run at background, your iPhone can play mp3 music and let you sing karaoke at the same time. What can you do with a microphone and remote loudspeaker? Who needs this mic and remote loudspeaker? Some examples are: - sing karaoke at home or anywhere, - teaching in a classroom or lecture room, - street performance, live show, - speaker in a large conference room, - garage sale, outdoor sale, pop-up store sale, or other sales promotion, - tour guide at the hot spot, - fan of a sport team, who sing loud to support the favourite sport team in the stadium, - outdoor activities, - works as volume booster or megaphone for your speech, - beach party, birthday party, exhibitions, celebrations and many more cases. With this app, you have a wireless microphone on your hand! Read me first: 1. User must connect to a bluetooth speaker when using this app for voice output. Do NOT choose device internal speaker, as there will be some unwanted echo noise. 2. This app will NOT bluetooth or airplay connect to your remote speaker. User has to manually connect to the speaker first (through Settings > Bluetooth). Then open this app. 3. When using this app to output voice to connected bluetooth speaker, user can put this app as background job and run another music app such as Apple Music (or any music app). To stop, go back to this app and tap the stop button. 4. This app does NOT support wired headset / headphone or bluetooth headset or line-out. 5. This app does not download or play online mp3 music or video. 6. Remember to turn device output volume to about 80-90% maximum (at top right icon), and mic gain to about 40-50% (at bottom slide bar). 7. Some iPad mic is located on top of the device, while most iPhone default mic is at the bottom. From iOS 14 and on, there will be an ads tracking dialog popup once, which is required for new iOS user privacy purpose. We do not collect any data from user or device. Feel free to contact our email support.

About

Days Mark

Features
Read full description

Days Mark - Countdown & Anniversary Reminders (Lunar supported) A simple countdown / anniversary tracker with reminders: birthday reminders, wedding anniversaries, yearly milestones, holidays, and important deadlines. 【Key Features】 • Create and manage events, with Gregorian & Lunar calendar support • Countdown / count-up automatically calculated • Local notification reminders: advance reminders and recurring reminders • Optional cloud sync: sign in to sync your countdowns/anniversaries across devices • Dark mode (follows system) • Languages: English / 简体中文 【Use Cases】 • Countdowns: holidays, exams, trips, paydays, project launches • Anniversaries: birthdays, wedding anniversaries, relationship milestones, work anniversaries 【Privacy & Data】 • Works without an account (local-first) • If you choose to sign in for sync, we may use your email address • For reminders we may use device-related information Support: support@ultrex.tech

Screenshots

Bluetooth Loudspeaker3 screens
Days Mark3 screens

Verdict

The call

The clearest difference is in-app purchases: Days Mark at none against Bluetooth Loudspeaker's 2. Days Mark also leads on ads (none vs shown) and update cadence (daily vs every 2 months). On price 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. Bluetooth Loudspeaker sells 2 one-off in-app purchases. Days Mark asks for nothing beyond the download.

UpkeepUpdate frequency

Bluetooth Loudspeaker ships an update every 2 months, Days Mark daily. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
Bluetooth Loudspeaker versus Days Mark: the parameters behind the verdict, then further details
ParameterBluetooth LoudspeakerDays Mark
PriceFreeFree
Rating4.4 (26 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings26 — better—
Update frequencyEvery 2 monthsDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size6 MB30 MB
Age rating4+4+
DeveloperWimlogUltrex

In-app purchases

2 purchases

Bluetooth Loudspeaker

One-time2
  • Share voice recordings$2.99
  • Remove ad$2.99
None

Days Mark

No in-app purchases

Questions

Is Bluetooth Loudspeaker free?
Bluetooth Loudspeaker is free to download, with in-app purchases available.
Is Days Mark free?
Days Mark is free to download, with no in-app purchases.
Do Bluetooth Loudspeaker or Days Mark have ads?
Bluetooth Loudspeaker shows ads; Days Mark does not.
Which is updated more often, Bluetooth Loudspeaker or Days Mark?
Bluetooth Loudspeaker ships an update every 2 months, and Days Mark daily. Most recently, Bluetooth Loudspeaker was updated on October 22, 2026 and Days Mark on October 12, 2026.

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