Dev I built RendrFlow: A privacy first, 100% offline AI Upscaler that runs entirely on-device (No cloud uploads)

Hi r/Android,

I am the developer of RendrFlow.

I built this app because I was tired of "free" upscalers that force you to upload your personal photos to a cloud server or hit you with a paywall after 3 edits. I believed our modern smartphones (Snapdragon/Tensor/Exynos chips) were powerful enough to handle these tasks locally, so I created an app that does exactly that.

try it:

If you have old, low-resolution photos or blurry shots that you want to fix without sharing them with a third-party server, this app is for you.

working (The Tech):

RendrFlow utilizes TensorFlow Lite and Android NNAPI to run Super Resolution models directly on your device’s hardware.

\- 100% Offline: You can put your phone in Airplane mode and it works perfectly.

\- Privacy: No data mining, no accounts, and no uploads. Your photos stay yours.

\- Optimization: It utilizes TFLite delegates to accelerate processing on your GPU/CPU.

Main Features:

\- AI Super Resolution: Upscale up to 16x (Choice of "High" speed or "Ultra" detail).

\- Background Removal: Instantly create transparent PNGs.

\- Batch Tools: Queue multiple images to upscale or convert (JPEG/PNG/WEBP/PDF) while you do other things.

Device Support:

I’ve optimized it for modern Android devices. Since it relies on your hardware, results may be faster on flagship chips , but it is fully functional on mid-range devices too.

Link:

https://play.google.com/store/apps/details?id=com.saif.example.imageupscaler

I’d love for you to give it a spin and let me know how the inference speed feels on your specific device model!

https://redd.it/1qjpi17
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https://redd.it/1qkl96j
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https://redd.it/1qkl5k2
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Daily Superthread (Jan 23 2026) - Your daily thread for questions, device recommendations and general discussions!

Note 1. Check MoronicMondayAndroid, which serves as a repository for our retired weekly threads. Just pick any thread and Ctrl-F your way to wisdom!



Note 2. Join our IRC and Telegram chat-rooms! Please see our wiki for instructions.



Please post your questions here. Feel free to use this thread for general questions/discussion as well.



The r/Android wiki has a list of recommended phones and covers most areas, the links have been added below. Any suggestions or changes are welcome. Please contact us if you would like to help maintain this section.



Entry level devices



Midrange section



Flagship section

https://redd.it/1qkq7q3
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"It sounded like popcorn": Inside a Galaxy S25 Plus fire, and what to learn from it
https://www.androidauthority.com/samsung-galaxy-s25-plus-fire-user-experience-learnings-3634743/

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Honor Magic V6's impressive battery capacity officially confirmed by 3C
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https://redd.it/1qku8rx
@reddit_android

What app do you use daily?

What are some small apps or tools you genuinely use every day?

Not big social media apps like Instagram or TikTok — I’m more curious about simple utilities or tools that quietly stay on your phone and actually get used daily.

https://redd.it/1qkp9t4
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Samsung is saving its best displays for iPhones, not Galaxies
https://www.gsmarena.com/samsung_is_saving_its_best_displays_for_iphones_not_galaxies-news-71208.php

https://redd.it/1qkheo6
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https://redd.it/1qldl3y
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https://redd.it/1qlgkrg
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Daily Superthread (Jan 24 2026) - Your daily thread for questions, device recommendations and general discussions!

Note 1. Check MoronicMondayAndroid, which serves as a repository for our retired weekly threads. Just pick any thread and Ctrl-F your way to wisdom!



Note 2. Join our IRC and Telegram chat-rooms! Please see our wiki for instructions.



Please post your questions here. Feel free to use this thread for general questions/discussion as well.



The r/Android wiki has a list of recommended phones and covers most areas, the links have been added below. Any suggestions or changes are welcome. Please contact us if you would like to help maintain this section.



Entry level devices



Midrange section



Flagship section

https://redd.it/1qlmem1
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Saturday APPreciation thread (Jan 24 2026) - Your weekly app recommendation/request thread!

Note 1. Check out our apps wiki for previous threads and apps curated by the reddit Android community!

Download the official r/Android App Store based on our wiki!

Note 2. Check MoronicMondayAndroid, which serves as a repository for our retired weekly threads. Just pick any thread and Ctrl-F your way to wisdom!

Note 3. Join our IRC and Telegram chat-rooms! Please see our wiki for instructions.

This weekly Saturday thread is for:
* App promotion,
* App praise/sharing

Rules:

1. If you are a developer, you may promote your own app ONLY under the bolded, distinguished moderator comment. Users: if you think someone is trying to bypass this rule by promoting their app in the general thread, click the report button so we can take a look!

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Thought on the rumour iPhone fold dimensions

I'm curious r/android‘s thoughts on the rumoured iPhone fold size and dimensions


https://www.notebookcheck.net/Similar-size-to-the-iPhone-13-Mini-Dummy-hands-on-gives-an-idea-about-what-to-expect-from-the-iPhone-Fold.1209221.0.html

Why do you think android manufacturers couldn’t get a device like this to market?

I personally love the passport-like size and orientation. particularly given the renewed focus of people trying to reduce their screen time. The sooner we get away from the vertical scrounge of Tiktok and Insta the better. So similar to the old Microsoft duo. So devo it didn’t make it.

https://redd.it/1qm7ey3
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