Comparison

Robo Call Revenge vs Piper Inventory

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

Head to head
About

Robo Call Revenge

This app allows you to respond to unwanted robo calls by speaking pre-programmed phrases. Customize your responses in the settings and activate them from the main screen to engage with telemarketers.

Highlights
  • Respond to robo calls
  • Speak custom phrases
  • Phrase customization
  • Engage with telemarketers
  • Settings screen for phrases
Features
Read full description

Tired of RoboCalls? Speak to them in their own language!!!!! Phrases can be entered in the settings screen, and 'spoken' in the main screen.

About

Piper Inventory

Manage your warehouse or mobile workstation inventory on the go. Easily add items, set minimum quantities, and use a Bluetooth barcode scanner to track stock. Syncs between devices for collaboration and generates restock lists.

Highlights
  • On-the-go inventory management
  • Bluetooth barcode scanner support
  • Set minimum stock quantities
  • Restock list generation
  • Inventory history tracking
  • Multi-location account management
  • Spreadsheet upload for setup
Features
Read full description

Disclaimer: Piper Inventory requires a single in-app subscription to be used. There are no additional subscriptions or payments within the app to unlock specific features. Once you pay for a subscription to access Piper Inventory, you will be able to use all it's features. EASILY AND QUICKLY MANAGE INVENTORY ON-THE-GO Easily manage inventory for your warehouse or mobile workstation with a standard bluetooth barcode scanner and never be caught without the items you need. Piper Inventory is an easy-to-use app that allows you to add items you’d like to keep stocked in your inventory, set a minimum quantity to keep on hand, and then use a bluetooth barcode scanner to easily remove items from your inventory as they’re used. Restock - will act as your ‘shopping list’ to keep everything stocked Inventory - is where you can add and remove items or change the minimum quantity History - allows you to see what’s being used and what isn’t - so you can eliminate unused stock Account - is where you can change your Hub if you are managing multiple inventory locations HOW IT WORKS The Piper Inventory app requires a little bit of setup on the front end, so that on a daily basis it requires nearly no time at all to use. *Setup* You can either enter items and their UPC numbers directly in the app or simply upload a spreadsheet of your inventory to the online Admin Portal. *Barcodes* You can print off barcodes with randomly generated UPC numbers from our website or directly use the barcode on an item’s packaging! *On The Job* simply scan an item’s barcode to remove it from current inventory, no taps or clicks required! When you’re ready, use the ‘Restock’ page to review needed inventory. Your inventory and restocking needs will be synced between devices to make collaboration easy. WHERE DID IT COME FROM? Piper Inventory was developed when we discovered a need for simple and robust inventory management software to use in our plumbing vans. There’s nothing more frustrating than showing up for a job and finding you don’t have some small part you could have easily brought! With Piper Inventory and a well structured van build-out, we rarely find ourselves without the needed parts or tools, and it is effortless to use. If this setup sounds like it could help you, visit Piper Vans to find out how a trade-optimized van build-out could save you time and money but most importantly on-the-job frustration! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Robo Call Revenge2 screens
Piper Inventory4 screens

Verdict

The call

The clearest difference is review sentiment: Piper Inventory at 100% against Robo Call Revenge's 0%. Piper Inventory also leads on price (Free vs $0.99) and rating (3.7 vs 1.0). Robo Call Revenge's advantage is in-app purchases (none vs 2). On 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

Piper Inventory is free to download; Robo Call Revenge costs $0.99 up front. Piper Inventory sells 2 in-app purchases, starting at $22.00 per month. Robo Call Revenge asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Piper Inventory holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 0% of Robo Call Revenge's written reviews are positive against 100% of Piper Inventory's.

UpkeepUpdate frequency

Robo Call Revenge ships an update every 43 months, Piper Inventory every 6 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

Scorecard7 real differences · 3 level
Robo Call Revenge versus Piper Inventory: the parameters behind the verdict, then further details
ParameterRobo Call RevengePiper Inventory
Price$0.99Free — better
Rating1.0 (1 ratings)3.7 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 43 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size44 MB17 MB
Age rating4+4+
DeveloperDan JohnsonPiper Diagnostics LLC

Customer experience

Robo Call Revenge

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

Piper Inventory

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Robo Call Revenge

No in-app purchases

2 purchases

Piper Inventory

Subscriptions2
  • Monthly$22.001 Month
  • Annual$199.001 Year

Questions

Is Robo Call Revenge free?
Robo Call Revenge costs $0.99, with no in-app purchases.
Is Piper Inventory free?
Piper Inventory is free to download, with in-app purchases available.
Which has better reviews, Robo Call Revenge or Piper Inventory?
Piper Inventory is rated higher. Robo Call Revenge averages 1.0 out of 5 from 1 ratings, while Piper Inventory averages 3.7 from 3 ratings.
Do Robo Call Revenge or Piper Inventory have ads?
Neither Robo Call Revenge nor Piper Inventory shows ads.
Which is updated more often, Robo Call Revenge or Piper Inventory?
Robo Call Revenge ships an update every 43 months, and Piper Inventory every 6 months. Most recently, Robo Call Revenge was updated on October 12, 2026 and Piper Inventory on October 3, 2026.

Other comparisons