Comparison

Signal Flags Communicator vs Upside Down Text

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

Head to head
About

Signal Flags Communicator

Features
Read full description

Signal Flags Communicator enables a unique form of communication using flag images. It is both a training aid to those wanting to learn to recognize the flags of the International Code of Signals, and an app to support and ensure privacy of communications, immediately, for anyone, with or without knowledge of the flags. In operation, Signal Flags Communicator instantly translates written or spoken (via Siri) text into corresponding flag images, constructs a graphic representation of the text, and a proprietary FlagMessage file. Once the composition is complete, the graphic (PDF) image can be sent via email or text, and is printable on any AirPrint capable printer. The FlagMessage file, which is simultaneously created, is intended for peer-to-peer communications via AirDrop or email attachment. Recipients of the FlagMessage file, as peers, can use their own Signal Flags Communicator app to translate and interpret the message when received, and save it locally on their device. Since neither the PDF nor the FlagMessage file contain any scannable text, the communication is resistant to any text scanning by 3rd parties. When transmitted via AirDrop, communications are secure and directly from one device to another, with no 3rd party involvement. Features include: • composing, printing, and sending of flag images and message content via email, text and AirDrop • A “native” app; all data is self contained in a protected form on the device • can communicate securely peer-to-peer via AirDrop • email capability uses a text-free proprietary format that cannot be scanned for text by 3rd parties • text messaging support for transmission of flag image content via a text-free PDF file • AirPrint support for printing flag images on all capable printers, including roll printers • recipients without knowledge or access to the flags can read the messages via use of the app on their own device • includes all International Code, and USN/NATO flags and pennants • capability to setup a message book, searchable for message text or meaning

About

Upside Down Text

Easily transform your typed text into an upside-down version. Copy and paste your unique creations into any application or use the share function to send them to other apps.

Highlights
  • Type text
  • Convert to upside-down
  • Copy converted text
  • Share to other apps
Features
Read full description

up side down text with this app you can impress your friends. Type some text and the app will turn it upside down. You can just copy the turned text in any app and paste it there. Or you can use the "share" function to transfer the text to any supporting app.

Screenshots

Signal Flags Communicator4 screens
Upside Down Text1 screens

Verdict

The call

The clearest difference is price: Upside Down Text at $0.99 against Signal Flags Communicator's $4.99. On update cadence, ads, in-app purchases and chart position 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

Signal Flags Communicator costs $4.99 and Upside Down Text $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Signal Flags Communicator ships an update every 17 months, Upside Down Text every 14 months. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

Scorecard1 real difference · 10 level
Signal Flags Communicator versus Upside Down Text: the parameters behind the verdict, then further details
ParameterSignal Flags CommunicatorUpside Down Text
Price$4.99$0.99 — better
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 17 monthsEvery 14 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
Best chart rank#150#99 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.615.6
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperGigs, Inc.Thallos

In-app purchases

None

Signal Flags Communicator

No in-app purchases

None

Upside Down Text

No in-app purchases

Questions

Is Signal Flags Communicator free?
Signal Flags Communicator costs $4.99, with no in-app purchases.
Is Upside Down Text free?
Upside Down Text costs $0.99, with no in-app purchases.
Do Signal Flags Communicator or Upside Down Text have ads?
Neither Signal Flags Communicator nor Upside Down Text shows ads.
Which is updated more often, Signal Flags Communicator or Upside Down Text?
Signal Flags Communicator ships an update every 17 months, and Upside Down Text every 14 months. Most recently, Signal Flags Communicator was updated on September 26, 2026 and Upside Down Text on September 17, 2026.
Which is more popular, Signal Flags Communicator or Upside Down Text?
Signal Flags Communicator currently peaks at #150 in the App Store charts, and Upside Down Text at #99. Chart position reflects recent download velocity rather than total install base.

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