Comparison

Nasapp vs TVClock Time

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

Head to head
About

Nasapp

Features
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NASAPP is a sophisticated but easy to use and interpret tool developed by the EURECAT Technology Centre of Catalonia, based in Catalonia, Spain. The NASAPP application is free of charge and has been developed so that anyone can be informed about air quality with data from the nearest automatic remote stations that collect basic information for atmospheric monitoring (gas and particle levels). NASAPP users can also report odour episodes anywhere and anytime. These odour observations create a dynamic map of odour pollution areas, with useful information for public administrations, chemical industries, ports and all kinds of activities in order to find joint solutions that can help mitigate odour pollution. NASAPP provides structured, form-based data collection from individual citizen reports in real time. Each record includes meteorological data for the study area. In addition, these records are the point of origin for statistical studies, air dispersion modelling and back-trajectory modelling towards the source or origin of the odour.

About

TVClock Time

Read full description

The days when you could see test card image on regular bases are far behind us. But if you sometimes feel nostalgic and you want to remember those days this is the best clock for you. Beside feeling nostalgic, TVClock Time saves you when you don't know current time after hours spent on watching movies on AppleTV. Containing all worldwide time zones it fits your time format and current time and you can see time on your home screen.

Screenshots

Nasapp4 screens

Verdict

The call

The clearest difference is price: Nasapp at Free against TVClock Time's $0.99. Nasapp also leads on update cadence (every 5 months vs every 20 months). TVClock Time's advantage is iOS requirement (9.0 vs 11.0). On ads, in-app purchases 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

Nasapp is free to download; TVClock Time costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nasapp ships an update every 5 months, TVClock Time every 20 months. The most recent releases landed on October 26, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 3 level
Nasapp versus TVClock Time: the parameters behind the verdict, then further details
ParameterNasappTVClock Time
PriceFree — better$0.99
Update frequencyEvery 5 months — betterEvery 20 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betterApple TV
Requires iOS11.09.0 — better
Further details — not scored
Size7 MB13 MB
Age rating4+4+
DeveloperFUNDACIO PRIVADA CENTRE TECNOLOGIC DE LA QUIMICA DE CATALUNYAJosip Bernat

In-app purchases

None

Nasapp

No in-app purchases

None

TVClock Time

No in-app purchases

Questions

Is Nasapp free?
Nasapp is free to download, with no in-app purchases.
Is TVClock Time free?
TVClock Time costs $0.99, with no in-app purchases.
Do Nasapp or TVClock Time have ads?
Neither Nasapp nor TVClock Time shows ads.
Which is updated more often, Nasapp or TVClock Time?
Nasapp ships an update every 5 months, and TVClock Time every 20 months. Most recently, Nasapp was updated on October 26, 2026 and TVClock Time on November 2, 2026.

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