Present Value Calculator vs Earth light map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Present Value Calculator
Calculate the present value of future cash flows by inputting time, future amount, and interest rate. Offers options for compound frequency like yearly, quarterly, monthly, or daily.
- Calculate present value
- Input future amount
- Input interest rate
- Adjust compound frequency
- Yearly compounding
- Quarterly compounding
- Monthly compounding
- Daily compounding
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Use this app to estimate the present value of a future amount based on an interest rate and time period. Calculate present value using different compound frequencies, including Yearly, Quarterly, Monthly, and Daily. Detailed results help you better understand the time value of money. Disclaimer: Results are estimates for informational purposes only and should not be considered financial, investment, legal, or tax advice. We are very happy to serve you. If you have any requests, don't hesitate to contact us. - https://www.facebook.com/phan.nhatdang.3/ - phannhatd@gmail.com
Earth light map
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The app presents the earth daylight status at the chosen date and time on a mercatorian earth map projection. It indicates the curve where the sun is -0.8 degrees below the horizon (sunset or sunrise) as well as the curve where the sun is at -18 degrees below the horizon (astronomical twilight or dawn). It also depicts the sun and moon positions in the equatorial coordinate system, the moon's phase, next equinox/solstice notification , user location, next lunar eclipse & Easter date
Screenshots
Verdict
The clearest difference is price: Present Value Calculator at Free against Earth light map's $1.99. Present Value Calculator also leads on iOS requirement (12.0 vs 15.5). Earth light map's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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
Present Value Calculator is free to download; Earth light map costs $1.99 up front. Present Value Calculator sells 1 one-off in-app purchase. Earth light map asks for nothing beyond the download.
Present Value Calculator ships an update every 30 months, Earth light map weekly. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | Present Value Calculator | Earth light map |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.8 (21 ratings) — better | — |
| Number of ratings | 21 — better | — |
| Update frequency | Every 30 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Phan Nhat Đang | Konstantinos Ladiellis |
In-app purchases
Present Value Calculator
- Unlock all features$1.99
Earth light map
No in-app purchases
Questions
Is Present Value Calculator free?
Is Earth light map free?
Do Present Value Calculator or Earth light map have ads?
Which is updated more often, Present Value Calculator or Earth light map?
Other comparisons
