Coinfold: Quarter Collection

A U.S. coin album app: every state quarter, every date and mint mark, from the Mint's own records.

Coming to Google Play Finished and waiting for its Google Play listing.

Coinfold is a coin album app for U.S. coins. It has a hole for every state quarter, every America the Beautiful and American Women quarter, the 2026 Semiquincentennial quarters and the 2027 Youth Sports quarters already announced, plus every date and mint of Lincoln cents, Jefferson nickels, Roosevelt dimes, Washington quarters, Kennedy halves and the small dollars.

Tap a hole when you find the coin. Every design and mint mark comes from the U.S. Mint's own lists and production records. It needs no account, has no subscription, and works offline.

Screenshots

Why we built it

Coin lists that stop years ago. Coinfold's catalog runs to the 2026 quarters and includes the 2027 Youth Sports designs, with an easy update path when the Mint announces release dates.
One coin and one grade per slot. Keep as many copies of a coin as you own, each with its grade, source, price paid, date, notes and photos.
Losing a collection with a phone. Back up everything, photos included, to one file and restore it on a new phone, or export to CSV.

Features

Every design, every mint mark

50 State Quarters (1999-2008), DC and U.S. Territories (2009), America the Beautiful (2010-2021), Washington Crossing the Delaware (2021), American Women (2022-2025), Semiquincentennial (2026)
Presidential $1 coins and Native American $1 coins (2009-2026)
P and D holes for pocket change; add S proofs, and W for the 2019 and 2020 West Point quarters (only on the designs that really had one)
Built from the U.S. Mint's program pages and the laws behind them; updated to the Youth Sports quarters announced in October 2026

Fill it in as you find them

One tap on an empty hole records the coin, dated today; Undo is one tap away
A map of the states that fills in as you collect, with the states still to complete
As many copies of a coin as you own, each with grade (G to MS and proof), where it came from, what you paid, the date, notes and your own photos
Filters for missing, owned, spares and wanted coins; search by name, state, year or "2019-W"

Lists to take along

Everything still missing, grouped by album, to share with family checking their change
A want list, including coins you want to upgrade
Your spares and coins for trade, ready for a coin show

Every date and mint of the classic series

Lincoln cents 1909-2025, Jefferson nickels, Roosevelt dimes, Washington quarters 1932-1998, Kennedy half dollars, and the Eisenhower, Susan B. Anthony and Sacagawea dollars
A hole for every year and mint that actually struck it, read from the U.S. Mint's own production records: no 1933 quarters, no 1975-dated quarters or halves, one hole for the 1965-1967 coins without mint marks, the 1942-1945 wartime nickels with their large P
Browse by decade; low-mintage dates marked with the Mint's own figures
Start with a few albums and add the others from the album list

Your own albums

Collecting Morgan dollars, Buffalo nickels or anything else? Make an album from a run of years or a list, with the mint marks you choose

How it works

The catalog has 657 designs and dates in 18 series. The modern programs (state, territory, America the Beautiful, American Women and Semiquincentennial quarters, Presidential and Native American dollars) come from the U.S. Mint's program pages and press releases and the laws behind them.

The classic date runs come from government production records: the Bureau of the Mint's historical tables, the Mint's annual reports and its circulating coin production data. That is why Coinfold has no 1933 quarters, no 1975-dated quarters or halves, one hole for the 1965–1967 coins without mint marks, and the 1942–1945 wartime nickels with their large P. Low-mintage dates are marked using the Mint's own figures.

W holes appear only where a W coin really exists, such as the 2019 and 2020 West Point quarters. Coinfold draws its own coin images; you can add photos of your own coins.

Honest limits

Coinfold tracks what you have and want; it does not estimate what coins are worth.
Release dates for the 2027 Youth Sports quarters weren't announced when the catalog was built; they arrive in an app update.
Die varieties (such as the 1909-S VDB or the 1955 doubled die) are not listed as separate holes, because the Mint's production records don't list them; add them in a custom album or a note.
Coinfold is not affiliated with the U.S. Mint.

Questions

What is the best app for collecting state quarters?

Coinfold is a free Android coin album with a hole for every state quarter and every later quarter program, by mint mark, plus a map that fills in as you collect. It works offline and needs no account.

How many state quarters are there?

The 50 State Quarters program (1999–2008) has 50 designs, each struck at Philadelphia (P) and Denver (D) for circulation. The 2009 program added six more for DC and the U.S. territories.

What do the P, D, S and W mint marks mean?

They show where a coin was struck: P for Philadelphia, D for Denver, S for San Francisco and W for West Point. Coinfold includes a mint-mark guide and only shows the holes that really exist for each coin.

Were there any 1975 quarters?

No. Quarters, half dollars and dollars struck in 1975 and 1976 carry the dual date 1776–1976 for the Bicentennial, so there are no 1975-dated coins of those denominations. Coinfold lists them under 1976.

Why do some 1965 to 1967 coins have no mint mark?

Mint marks were left off U.S. coins dated 1965, 1966 and 1967, whichever mint struck them, so Coinfold has one hole for each of those dates.

Are pennies still being made?

The U.S. Mint struck its final circulating one-cent coins in November 2025, so Coinfold's Lincoln cent album runs from 1909 to 2025.

Does Coinfold tell me what my coins are worth?

No. Coinfold tracks what you have and want, with grades and what you paid; it deliberately does not guess coin values.

Is Coinfold free?

Yes. It is free with ads, and an optional one-time purchase removes them; there is no subscription.

Private and offline

Runs entirely on your phone and works offline. No account, no sign-up, and your data stays on your device. The app shows ads through Google AdMob; see the privacy policy. Privacy policy.

Free. An optional one-time purchase removes the ads; nothing is locked and there is no subscription.