Comparison

Call Simulator vs RXO Chat

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

Head to head
About

Call Simulator

Practice your phone communication skills with simulated call scenarios. This app helps improve eloquence for situations like job interviews. Upgrade to VIP for full access to features.

Highlights
  • Scenario-based call simulation
  • Eloquence practice
  • Telephone communication skill honing
  • Improve interview performance
  • Customizable call situations
Features
Read full description

This app is a scenario-based tool for eloquence practice.  It simulates various phone call situations to help you hone your telephone communication skills.  If you get nervous during phone interviews, try this app to consistently improve your eloquence across different scenarios. Auto-Renewable subscription Note: This app is free but you can also upgrade to VIP for full access to features through an auto-renewing subscription.Price may vary by location. Subscriptions for VIP will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. You can manage your subscriptions in the Account Settings after purchase. Terms of Use : https://yuedong56.github.io/2019/01/02/Terms%20of%20VIP%20Service/ Privacy Policy : https://yuedong56.github.io/2019/01/02/Privacy%20Policy/

About

RXO Chat

Connect your Ruby Calculator hardware to an iPhone or iPad. Exchange messages via Bluetooth or internet, and transfer notes for storage with the Ultimate Edition. Utilizes Apple's native Bluetooth Low Energy for seamless connectivity.

Highlights
  • Connect Ruby Calculator hardware
  • Message exchange via Bluetooth
  • Message exchange via Internet
  • Transfer notes for storage
  • Utilizes Bluetooth Low Energy
Features
Read full description

RXO Chat allows users of the Ruby Calculator to connect their hardware to an Apple iPhone or iPad. Once connected, users will be able to exchange messages over a Bluetooth or Internet Connection. Additionally, with Ruby Calculator Ultimate Edition the user will be able to transfer up to 300000 words of notes to the calculator for storage. The app utilises Apples native Bluetooth Low Energy peripheral in conjunction with a BLE module on the Ruby Calculator to establish and maintain connectivity.

Screenshots

Call Simulator4 screens
RXO Chat3 screens

Verdict

The call

The clearest difference is in-app purchases: RXO Chat at none against Call Simulator's 3. RXO Chat also leads on ads (none vs shown). Call Simulator's advantage is ratings volume (29K vs 7) and update cadence (every 3 weeks vs every 2 months). On price, rating, review sentiment 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. Call Simulator sells 3 in-app purchases, starting at $1.99 per month. RXO Chat asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Call Simulator against 4.7 for RXO Chat. That said, the two scores are not equally well evidenced: Call Simulator has 29K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 90% of Call Simulator's written reviews are positive against 83% of RXO Chat's.

UpkeepUpdate frequency

Call Simulator ships an update every 3 weeks, RXO Chat every 2 months. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Call Simulator versus RXO Chat: the parameters behind the verdict, then further details
ParameterCall SimulatorRXO Chat
PriceFreeFree
Rating4.6 (29K ratings)4.7 (7 ratings) — better
Positive reviews90.2% of reviews — better83.3% of reviews
Number of ratings29K — better7
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size80 MB2 MB
Age rating4+17+
Developer雪景 潘Ruby Devices Pty Ltd

Customer experience

Call Simulator

All ratings28,505 ratings
Positive88.7%
Neutral5.9%
Negative5.4%
Written reviews1,194 reviews
Positive90.2%
Neutral4.8%
Negative5.0%

RXO Chat

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Bugs and requests

Call Simulator

Reported bugs

3 issues
  • App crashes or freezes
  • Inconsistent functionality across devices
  • Issues with restoring purchases

Requested features

5 requests
  • More voice options
  • Ability to save custom call settings
  • Integrate with phone's contacts
  • Option to hide app name on home screen
  • Longer call duration timer

RXO Chat

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Call Simulator

Subscriptions2
  • Monthly VIP$1.991 Month
  • Annual VIP$6.991 Year
One-time1
  • Lifetime VIP$5.99
None

RXO Chat

No in-app purchases

Questions

Is Call Simulator free?
Call Simulator is free to download, with in-app purchases available.
Is RXO Chat free?
RXO Chat is free to download, with no in-app purchases.
Which has better reviews, Call Simulator or RXO Chat?
RXO Chat is rated higher. Call Simulator averages 4.6 out of 5 from 29K ratings, while RXO Chat averages 4.7 from 7 ratings.
Do Call Simulator or RXO Chat have ads?
Call Simulator shows ads; RXO Chat does not.
Which is updated more often, Call Simulator or RXO Chat?
Call Simulator ships an update every 3 weeks, and RXO Chat every 2 months. Most recently, Call Simulator was updated on October 17, 2026 and RXO Chat on October 7, 2026.

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