Amountle

Amountle takes the old fairground contest of guessing the sweets in a jar and turns it into a five round daily. Each round drops a batch of 3D objects into a glass container. They can be balls, cubes, twenty sided polyhedra or other shapes, in mixed sizes. Once the pour settles you have 15 seconds to enter a count, and you can spin the jar or shake it to see the pile from another side before you commit.

After each guess the game counts the objects out loud on screen and shows how far off you were. It also shows how your answer compares with everyone else who played that jar. The five rounds are the same for every player on a given date, and the day's total goes on a public leaderboard if you pick a player name. You can play without an account.

Around the daily there are side modes. Over / Under asks whether a jar holds more or less than a given number. Fill gives you a target and has you tap or hold to pour until you think you have hit it. Survival runs until a guess misses, and practice drops the timer. A duel lets you play a set and send it to a friend. Yesterday's puzzle stays open for anyone who missed it, and a streak counter tracks your run.

Amountle is made by Isaac Audet as a side project, with a web version and an iPhone app. The web game shows no ads. An optional Amountle+ purchase adds the full archive of past dailies, streak freezes and a view of where you tend to guess high or low, and the page says purchases never change scores or ranks.

It suits players who want a short daily game built on numbers and a sense of quantity rather than words. A full day takes about two minutes.