Comparison

Optogenetics Pro vs Silter

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

Head to head
About

Optogenetics Pro

This tool helps researchers calculate the necessary optical power for optogenetics experiments involving light delivery to deep brain areas. It considers brain region scattering properties, opsin type, and optical fiber characteristics to estimate excitation depth as a function of optical power.

Highlights
  • Calculate required optical power
  • Estimate opsin excitation depth
  • Model light scattering in brain tissue
  • Input brain region properties
  • Input opsin properties
  • Input optical fiber properties
Features
Read full description

Optogenetics Pro is a tool which aids an investigator in calculating the required optical power for a given in-vivo experiment involving optogenetics or any other experimental approach that includes light delivery to deep brain areas via optical fibers. Different brain areas have different optical properties, which determine how light scatters and distributes, once it exits the optical fiber. To estimate the amount of light required for a given experimental design, knowledge about the specific scattering properties of the brain region of choice, the specific opsin to be used, and the properties of the optical fiber are required. Once a user inputs these parameters into the APP, it calculates the maximal depth at which excitation of the opsin can be expected. The penetration depth is plotted as a function of optical power (mW), such that a user can see how light scatters in the brain tissue under the specific circumstances. For the scientific basis of this calculator, please see Al-Juboori, Dondzillo, Stubblefield, Felsen, Lei, and Klug: Light scattering properties vary across different regions of the adult mouse brain, PlosONE, e67626(8) 2013. For additional information, please see www.optogeneticsapp.com. The pro and regular versions of the app are identical.

About

Silter

This app uses AI to automatically detect and block unwanted SMS messages, such as scams and ads. It offers country-specific protection and allows users to create custom blocking rules while ensuring complete privacy by processing all data locally on the device.

Highlights
  • AI-powered spam detection
  • Country and region-based protection
  • Customizable filter rules
  • 100% privacy-first, local processing
  • Ad-free experience
  • Lightweight and easy to use
Features
Read full description

Silter – AI-Powered SMS Spam Filter Stop spam before it hits. Smart. Private. Powerful. Smart Filter, Powered by AI Silter uses advanced AI and intelligent algorithms to detect and block spam SMS messages — tailored by country and language. Whether it’s scams, ads, or unwanted promotions, the smart filter adapts automatically to your region and blocks them with industry-leading precision. Country & Region-Based Protection No manual setup. Silter instantly detects your location and applies the most relevant spam rules based on local spam patterns. It’s like having a personal spam expert in your pocket. Create Your Own Filters Need more control? You can define custom keywords, phrases, or sender rules to block specific messages your way. 100% Privacy-First Silter never collects or stores any personal data. All spam filtering is done locally on your device — your messages and preferences stay 100% private. Lightweight, Effective, and Easy to Use No login, no tracking, no ads. Just install, enable in settings, and enjoy instant protection from unwanted texts. https://nefarius-apps.github.io/Silter/privacy-policy https://nefarius-apps.github.io/Silter/terms-of-use

Screenshots

Optogenetics Pro4 screens
Silter4 screens

Verdict

The call

The clearest difference is rating: Optogenetics Pro at 5.0 against Silter's 3.3. Optogenetics Pro also leads on in-app purchases (none vs 6) and device support (3 vs 1). Silter's advantage is update cadence (every 4 weeks vs every 45 months). On price, ratings volume, ads 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

Both are free to download. Silter sells 6 in-app purchases, starting at $4.99 per 7 days. Optogenetics Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Optogenetics Pro holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Optogenetics Pro ships an update every 45 months, Silter every 4 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Optogenetics Pro versus Silter: the parameters behind the verdict, then further details
ParameterOptogenetics ProSilter
PriceFreeFree
Rating5.0 (2 ratings) — better3.3 (4 ratings)
Positive reviews—0.0% of reviews
Number of ratings24 — better
Update frequencyEvery 45 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size365 MB81 MB
Age rating4+4+
DeveloperPopneuron Ltd.Yusuf Demirci

Customer experience

Optogenetics Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Silter

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Optogenetics Pro

No in-app purchases

6 purchases

Silter

Subscriptions6
  • Premium$4.997 Days
  • Premium3 Days trial$9.991 Month
  • Premium Access3 Days trial$9.997 Days
Show 3 more
  • Premium Access7 Days trial$9.997 Days
  • Premium$19.991 Year
  • Premium yearly with trial3 Days trial$49.991 Year

Questions

Is Optogenetics Pro free?
Optogenetics Pro is free to download, with no in-app purchases.
Is Silter free?
Silter is free to download, with in-app purchases available.
Which has better reviews, Optogenetics Pro or Silter?
Optogenetics Pro is rated higher. Optogenetics Pro averages 5.0 out of 5 from 2 ratings, while Silter averages 3.3 from 4 ratings.
Do Optogenetics Pro or Silter have ads?
Neither Optogenetics Pro nor Silter shows ads.
Which is updated more often, Optogenetics Pro or Silter?
Optogenetics Pro ships an update every 45 months, and Silter every 4 weeks. Most recently, Optogenetics Pro was updated on October 7, 2026 and Silter on October 25, 2026.

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